2015应届生求职,到处都是坑(3篇)

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第一篇:《2015年最新高考总复习高三文科数学作业第3篇 第6讲》

第6讲 正弦定理和余弦定理

基础巩固题组 (建议用时:40分钟)

一、选择题

1.(2013·绍兴模拟)在△ABC中,若a2-c2+b2=3ab,则C= A.30° C.60°

2

2

2

( ).

B.45° D.120°

a2+b2-c23ab3解析 由a-c+b=3ab,得cos C=2ab2ab2所以C=30°. 答案 A

32.(2014·合肥模拟)在△ABC中,A=60°,AB=2,且△ABC的面积为2BC的长为 A.

3

2

B.3 D.2

( ).

C.3

1133

解析 S=2×AB·ACsin 60°=2×2×2AC=2,所以AC=1,所以BC2=AB2+AC2-2AB·ACcos 60°=3,所以BC=3. 答案 B

3.(2013·新课标全国Ⅱ卷)△ABC的内角A,B,C的对边分别为a,b,c,已知ππ

b=2,B6,C4,则△ABC的面积为 A.23+2 C.3-2

B.3+1 D3-1

( ).

bc

解析 由正弦定理sin Bsin C及已知条件得c=22, 2+61232

又sin A=sin(B+C)=22+22=4.

2+611

从而S△ABC=2bcsin A=22×22×43+1. 答案 B

4.(2013·山东卷)△ABC的内角A,B,C所对的边分别为a,b,c.若B=2A,a=1,b3,则c= A.23 C2

B.2 D.1

( ).

abab133解析 由sin Asin B,得sin A=sin 2A所以sin A2sin Acos A故cos A=2,πππ

又A∈(0,π),所以A=6,B3,C=2,ca+b=12+32=2. 答案 B

5.(2013·陕西卷)设△ABC的内角A,B,C所对的边分别为a,b,c,若bcos C+ccos B=asin A,则△ABC的形状为 A.直角三角形 C.钝角三角形

B.锐角三角形 D.不确定

( ).

解析 由正弦定理及已知条件可知sin Bcos C+cos Bsin C=sin2 A,即sin(B+C)=sin2 A,而B+C=π-A,所以sin(B+C)=sin A,所以sin2 A=sin A,π又0<A<π,sin A>0,∴sin A=1,即A=2. 答案 A 二、填空题

6.在△ABC中,角A,B,C所对的边分别为a,b,c,若a2,b=2,sin B+cos B=2,则角A的大小为________.

ππ

解析 由题意知,sin B+cos B2,所以2sinB+42,所以B=4ab221

据正弦定理可知sin Asin B,可得sin A=π,所以sin A=2,又a<b,故A

sin4π=6. π

答案 6

7.(2014·惠州模拟)在△ABC中,角A,B,C的对边分别为a,b,c.若(a2+c2

-b2)tan B=3ac,则角B的值为________.

a2+c2-b23解析 由余弦定理,得cos B,结合已知等式得cos B·tan B=

2ac2,3π2π

∴sin B=2B=33π2π

答案 33

8.(2013·烟台一模)设△ABC的内角A,B,C的对边分别为a,b,c,且a=1,1

b=2,cos C=4sin B等于________.

1

解析 由余弦定理,得c=a+b-2abcos C=4,即c=2.由cos C=4得sin C

22015应届生求职,到处都是坑(3篇)

2

2

15bcbsin C21515

=4由正弦定理sin B=sin Csin B=c2×4=4(或者因为c15

=2,所以b=c=2,即三角形为等腰三角形,所以sin B=sin C4). 答案

154

三、解答题

9.(2014·宜山质检)在△ABC中,a,b,c分别是角A,B,C所对的边,且a= 1

2c+bcos C. (1)求角B的大小;

(2)若S△ABC=3,b=13,求a+c的值. 1

解 (1)由正弦定理,得sin A=2sin C+sin Bcos C, 又因为A=π-(B+C), 所以sin A=sin(B+C),

1

可得sin Bcos C+cos Bsin C=2C+sin Bcos C, 1π

即cos B=2B∈(0,π),所以B=3.

(2)因为S△ABC=3,所以2acsin3=3,所以ac=4,

由余弦定理可知b2=a2+c2-ac,

所以(a+c)2=b2+3ac=13+12=25,即a+c=5.

10.(2013·深圳二模)在△ABC中,角A,B,C的对边分别为a,b,c,已知a=3,b=5,c=7. (1)求角C的大小; π

B+(2)求sin的值. 3

a2+b2-c232+52-721

解 (1)由余弦定理,得cos C=2ab2∵0<C<π,∴

2×3×52πC3.

bc

(2)由正弦定理sin Bsin C,得 2π3

bsin C3

sin B=c=7=14, 2π

∵C3,∴B为锐角, ∴cos B=1-sin B3211

=. 1-

1414

πππB∴sin3=sin Bcos 3+cos Bsin 33111343=14214×27

能力提升题组 (建议用时:25分钟)

一、选择题

22→·→的最

1.(2014·温岭中学模拟)在锐角△ABC中,若BC=2,sin A=3ABAC大值为 1

A.3 C.1

4

B.5 D.3

( ).

14

解析 由余弦定理,得a=b+c-2bc×34,由基本不等式可得4≥3bc,

2

2

2

→·→=bccos A=1≤1.

即bc≤3,所以ABAC

3答案 C

2.(2013·青岛一中调研)在△ABC中,三边长a,b,c满足a3+b3=c3,那么 △ABC的形状为 A.锐角三角形 C.直角三角形

B.钝角三角形 D.以上均有可能

( ).

解析 由题意可知c>a,c>b,即角C最大, 所以a3+b3=a·a2+b·b2<ca2+cb2,即

222

a+b-c

c3<ca2+cb2,所以c2<a2+b2.根据余弦定理,得cos C=>0,所

2ab

π

以0<C<2 答案 A 二、填空题

3.在△ABC中,B=60°,AC=3,则AB+2BC的最大值为________ . AB3BC解析 由正弦定理知sin Csin 60°=sin A ∴AB=2sin C,BC=2sin A.

又A+C=120°,∴AB+2BC=2sin C+4sin(120°-C) =2(sin C+2sin 120°cos C-2cos 120°sin C) =2(sin C+3cos C+sin C)

=2(2sin C+3cos C)=7sin(C+α),2015应届生求职,到处都是坑(3篇)

3

其中tan α=2α是第一象限角,由于0°<C<120°,且α是第一象限角,因此AB+2BC有最大值27. 答案 7 三、解答题

4.(2013·长沙模拟)在△ABC中,边a,b,c分别是角A,B,C的对边,且满足bcos C=(3a-c)cos B.

第二篇:《应届生求职大礼包2015-面试篇》

目录

面 试................................................................................................................................................4

第一章 关于面试.....................................................................................................................5

第二章 面试前的准备.............................................................................................................5

第三章 面试类型及应对技巧.................................................................................................6

第四章 面试题目分类详解.....................................................................................................7

第五章 面试之后,未结束的战场.........................................................................................8

试读部分章节(第三章 面试类型及应对技巧-部分)........................................................8

3.1电话面试.............................................................................................................................82015应届生求职,到处都是坑(3篇)

3.1.1 什么是“电面”.....................................................................................................8

3.1.2 应对技巧与注意事项.............................................................................................8

3.2小组面试.............................................................................................................................9

3.2.1 什么是小组面试?.................................................................................................9

3.2.2 小组面试的主要类型.............................................................................................9

3.2.3 小组面试考察的素质能力...................................................................................10

3.2.4 小组面试的评分方式及标准...............................................................................10

3.2.5 小组面试流程及应对策略...................................................................................11

3.2.6小组面试的常见问题............................................................................................18

(一)讨论辩论类.................................................................................................18

(二)要素排序类.................................................................................................19

(三)案例分析类.................................................................................................20

(四)工作问题类.................................................................................................21

(五)活动策划类.................................................................................................22

(六)创意制作类.................................................................................................22

3.2.7小组面试实例:八名游客营救顺序....................................................................23

3.3案例面试...........................................................................................................................26

3.3.1什么是案例面试....................................................................................................26

3.3.2 案例面试实例详解...............................................................................................27

3.3.3案例面试常见问题分类........................................................................................35

3.3.4 案例面试核心技巧...............................................................................................37

要点一:框架.........................................................................................................37

要点二:互动.........................................................................................................39

要点三:分析.........................................................................................................41

要点四:结论.........................................................................................................43

要点五:必要技巧.................................................................................................43

3.4 评价中心(Assessment Centres,AC面)...................................................................45

3.4.1 什么是AC面?...................................................................................................45

3.4.2 AC面常见测评内容分类.....................................................................................45

3.4.3名企AC面试全接触............................................................................................46

3.5 行为面试..........................................................................................................................49

3.5.1 什么是行为面试...................................................................................................49

3.5.2 行为面试考察要素及典型问题分解...................................................................49

3.5.3 行为面试应答技巧——What+STAR+Key Words法则.....................................51

3.5.4 行为面试应答注意事项.......................................................................................53

3.5.5 行为面试应答范例...............................................................................................54

3.5.6 如何准备行为面试问题.......................................................................................55

3.6 压力面试..........................................................................................................................56

3.6.1什么是压力面试?................................................................................................56 3.6.2无处不在的压力面试............................................................................................56

3.6.3 压力面试应对策略...............................................................................................58

3.7结构化面试.......................................................................................................................60 3.7.1什么是结构化面试?............................................................................................60 3.7.2 一份典型结构化面试卷.......................................................................................61 附 录 应届生求职网YingJieSheng.COM简介...........................................................64 参考文献.........................................................................................................................64 附录:更多求职精华资料推荐.....................................................................................................66

内容声明:2015应届生求职,到处都是坑(3篇)

本文由应届生求职网YingJieSheng.COM()收集、整理、编辑,内容来自于相关企业的官方网站及论坛热心同学贡献,内容属于我们广大的求职同学,欢迎大家与同学好友分享,让更多同学得益,此为编写这套应届生求职大礼包2012的本义。

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京东商城:

《应届生求职笔试全攻略》

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应届生求职大礼包——面试篇

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推荐:《应届生求职面试全攻略》

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《应届生求职面试全攻略》全书目录

第一章 关于面试

• 1.1 面试的三个阶段 1.2 应届生面试考核的内容 1.3 面试类型概述 1.4 面试过程及应对策略2015应届生求职,到处都是坑(3篇)

o 1.4.1 一般面试过程

o 1.4.2 面试各阶段策略与细节管理

第二章 面试前的准备

• 2.1 长期准备 2.2 准备面试着装 2.3 了解公司及招聘职位、行业状况

o 2.3.1 了解公司

o 2.3.2 了解应聘职位

第三篇:《2015年最新高考总复习高三文科数学作业第3篇》

步骤规范练——解三角形

(建议用时:90分钟)

一、选择题

1

sin2 35°-2

1.(2013·山东师大附中月考)化简cos 10°=

cos 80°A.-2 C.-1

2

( ).

1

B.-2 D.1

1-cos 70°111

sin 35°-2-

222cos 70°

解析 cos 10°cos 10°=1=-1.

cos 80°·sin 10°

2答案 C

π3

2.(2014·潮州二模)在△ABC中,A=3,AB=2,且△ABC的面积为2,则边AC的长为 A.1 C.2

B.3 D2

( ).

1133

解析 由题意知S△ABC=2×AB×AC×sin A=22×AC×22∴AC=1. 答案 A

π

3.(2013·成都五校联考)已知锐角α满足cos 2α=cos4α,则sin 2α等于



1

A.2 2

C2

1

B.-2 2

D2

( ).

ππππ解析 ∵α∈0,2,∴2α∈(0,π),4α∈-4,4.

πππ

又cos 2α=cos4α,2α=4-α或2α+4-α=0,



ππ

∴α=12或α=-4(舍). π1

∴sin 2α=sin 6=2,故选A. 答案 A

3

4.(2014·中山模拟)已知角A为△ABC的内角,且sin 2A=-4sin A-cos A=

7

A.2 1

C.-2

7

B.-2 1D.2

( ).

3

解析 ∵A为△ABC的内角,且sin 2A=2sin Acos A=-4<0,∴sin A>0,cos A<0,∴sin A-cos A>0. 7

又(sin A-cos A)=1-2sin Acos A=4.

2

7

∴sin A-cos A=2答案 A

5.(2013·临沂一模)在△ABC中,角A,B,C所对的边分别为a,b,c,若sin2 A+sin2 C-sin2 B3sin Asin C,则角B为 π

A.6 2

C.3π

2

2

2

( ).

π

B.3 5D.6π

a2+c2-b23ac

解析 由正弦定理可得a+c-b=3ac,所以cos B=2ac2ac=3π

B=26答案 A

6.(2013·湛江二模)若三条线段的长分别为3,5,7,则用这三条线段 A.能组成直角三角形 C.能组成钝角三角形

B.能组成锐角三角形 D.不能组成三角形

( ).

32+52-72

解析 设能构成三角形的最大边为a=7,所对角为A,则cos A==

2×3×51

-2<0,

故A为钝角,即构成的三角形为钝角三角形. 答案 C

7.(2013·安徽卷)设△ABC的内角A,B,C所对边的长分别为a,b,c.若b+c=2a,3sin A=5sin B,则角C= π

A.3 3π

C4

( ). 2π

B.3 5πD6

5

解析 由3sin A=5sin B,得3a=5b,∴a=3b, 7

代入b+c=2a中,得c=3.由余弦定理, a2+b2-c212π

得cos C=2ab2C=3. 答案 B

53

8.(2013·东北三校联考)设α,β都是锐角,且cos α=5,sin(α+β)=5,则cos β=

252015应届生求职,到处都是坑(3篇)

A.25 55

C25或5 解析 α,β都是锐角, 525

当cos α=5sin α=5. 51

因为cos α=52α>60°. 33又sin(α+β)=52, 所以α+β<60°或α+β>120°.

显然α+β<60°不可能,所以α+β为钝角.

( ). 5

B.5 55D5或25

34

又sin(α+β)=5,因此cos(α+β)=-5 所以cos β=cos[(α+β)-α] =cos(α+β)cos α+sin(α+β)sin α

4535-45+655=-5×5+5×5=25.

25答案 A

9.(2013·新课标全国Ⅰ卷)已知锐角△ABC的内角A,B,C的对边分别为a,b,c,23cos2A+cos 2A=0,a=7,c=6,则b= A.10 C.8

B.9 D.5

( ).

1解析 化简23cos2A+cos 2A=0,得23cos2A+2cos2A-1=0,解得cos A=5由余弦定理,知a2=b2+c2-2bccos A,代入数据,得b=5. 答案 D

π

10.(2013·天津卷)在△ABC中,∠ABC=4AB=2,BC=3,则sin∠BAC=

10

A.10 10

C10

( ). 10

B.5 5D5

解析 由余弦定理,得AC2=BA2+BC2-2BA· πBCcos B=(2)+3-2×2×3cos45.

2

2

∴AC5,由正弦定理

BCAC

=,得

sin∠BACsin∠ABC

π2

3×sin 43×2

BC·sin∠ABC310

sin∠BAC=AC1055答案 C 二、填空题

ππ3π

11.(2013·浙江五校联盟联考)已知sin4-x=4,且x∈-2,-4,则cos 2x



的值为________.

π2π2x解析 sin 2x=cos2=1-2sin4x 13=1-2×428

ππ

∵x∈-24,

π-π,-∴2x∈. 2

37

∴cos 2x=-1-sin 2x=-.

87

答案 -8

12.已知△ABC的三个内角A,B,C成等差数列,且AB=1,BC=4,则边BC上的中线AD的长为________.

解析 由△ABC的三个内角A,B,C成等差数列,可得B=60°,又在△ABD中,AB=1,BD=2,由余弦定理可得ADAB+BD-2AB·BDcos B=3. 答案

3

13.(2013·济宁期末考试)在△ABC中,a,b,c分别是角A,B,C的对边,若b2

=1,c=3,C=3π,则S△ABC=________.

bc1

解析 因为c>b,所以B<C,所以由正弦定理得sin Bsin C,即sin B=

3

2π3

1ππ2ππ1

=2,即sin B=2B=6,所以A=π-636所以S△ABC=2 sin A113=23×2=43

答案 4πππ14.(2014·天水模拟)f(x)=2sin24x-3cos 2x-1,x∈42,则f(x)的最小

值为________ .

解析 f(x)=2sin4+x3cos 2x-1



第四篇:《2015互联网应届生工资》

2015互联网应届生工资

由于互联网&IT技术的不断革新和未来巨大的发展潜力,让越来越多人开始憧憬这个行业,互联网不仅改变了人们的生活,对社会起到推动作用,还解决了很多应届毕生的就业问题。作为一门越来越被重视的学科,互联网&IT相关专业越来越热门,2015年即将毕业的互联网应届毕业生开始考虑求职事宜,对他们来说,最关心的莫过于2015互联网应届生工资情况,那么今天青麦人才就业顾问就为大家做一个分析。

想了解2015互联网应届生工资情况,首先要了解2015年互联网&IT行业的就业前景,信息技术已经席卷全球,被认为是第三次工业革命,它影响了世界,改变了世界,并且这个行业一直被誉为高薪,未来的发展前景也相当广阔,对不少求职者产生了极大的吸引。所以从未来的发展趋势来看,2015互联网应届生工资情况应该比较乐观。

对于转行投身互联网行业的求职者来说,其实互联网相关专业的应届毕业生会更有优势,虽然缺乏社会经验和实战经验,但是知识结构和基础比较牢固。如果担心自身技能和素质达不到心仪企业的用人标准,也可以通过项目实训机构来对自己进行一个提升,对于有基础的应届生而言,往往会学习的比较快,方向和目标也比较明确,能力提高上z来,工资水平也会有所提升。

虽然说目前互联网相关专业的应届毕业生很多,竞争力激烈,但是目前人才输出仍然抵不上社会发展和企业的需求,不少新兴的互联网创业企业的崛起,加上传统行业互联网进程加快,互联网&IT行业的人才缺口非常大,人才的需求量远远大于供给量,这也是为什么大量的互联网企业不断以高薪来吸引人才的原因。相信2015互联网应届生工资情况相较于其他行业来说,应该处于比较高的薪资水平。

2015互联网应届生工资水平如何?据权威专家预测,2015年UID人才缺口将高达100万,未来电子商务人才缺口高达500万,软件测试工程师在未来十年都会是紧缺人才,这样的趋势下,对于互联网应届毕业生来说是既是机遇,也是挑战。互联网&IT行业在近几年都是高薪行业,只要应届生们做求职前的准备,进行好职业规划,选择正确的方向,相信一定能够拿到满意的薪资!

第五篇:《2015年研究生复试经典自我介绍3篇必背》

2015年研究生复试经典自我介绍3篇(必背)

1.开场白

Good morning. I am very glad to be here for this interview.

2.姓名,英文名,毕业院校,毕业专业,毕业学院

My name is LiLei, and my English name is David Lee. I've finished my undergraduate education in Beijing University, Electronic Science and Technology in the college of Technical Physics.

3.性格,爱好,实践经验

英语自我介绍 1

Good morning,my dear teachers, my dear professors.i am very glad to be here for your interview.my name is song yonghao, i come from luoyang,a very beautiful aicent city.my undergratuade period will be accomplished in chang'an university in july , 2004;and now,i am trying my best for obtaining a key to tongji university.

Generally speaking , i am a hard working student especially do the thing i am interested in. i will try my best to finish it no matter how difficult it is. when i was sophomore, i found web design very interesting, so i learned it very hard . to weaver a homepage for myself, i stayed with my pesonel computer for half a month.,and i am the first one in my class who own his homepage. forthermore,i am a person with great perserverence. during the days preparing for the first examination,i insist on running every day, no matter what the weather was like.and just owning to this,i could concentrate on my study and succeeded in the end.

Well ,in my spare time ,i like basketball, tennis and chinese chess. also english is my favorate.i often go to english corner to practise my oral english on every thursday,and write compositions to improve my witten ability .but i know my english is not good enough ,i will continue studying.

Ok, that is all,thank you for your attention.

英语自我介绍2

I am open-minded, willing and have broad interests like basketball, reading and especially in engineering such as software programming, website design, hardware design. For example, during the past four years, I have accomplished two websites: one is the website of our school, and the other is the website of the doctor forum of china 2007. Furthermore, I am interested in C plus plus programming language and have written some application programs. In July in the last year,I finished my graduate project with flying colors,which was a software application about Image Process . In addition, I have also finished some projects about embedded system by using MCU when I was a junior.

4.为什么想读研,将来愿意从事的方向,读研时的打算

Although I have broad interests in many aspects and grasp the essential knowledge of the major, but I think at present, I can do many things in a superficial level, but not be competent to do things professionally owing to lack of ample knowledge and ability. So I think further study is still urgent for me to realize self-value.

The major that I hope pursue for my further education is IC design. Because I find integrated circuits are playing a more and more important role in our modern society. And nowadays in China, with the recognition by the government, our domestic integrated circuits industry is growing rapidly and that may provide a lot of chances to us.

I plan to concentrate on study and research in this field in my graduate time. And I hope I can form a systematic view of micro electronics and IC design technology and make a solid foundation for future profession after three years study here.

5.结束语

OK, that’s all. Thank you very much.

英语自我介绍 3

Hello, my professors.It’s a fine day today,and i’m very pleased to meet you here.First of all,i’d like to introduce myself to you.My name is ***,my hometown is ***,which is a really beautiful city.Even when i was a young boy,i was very interested in biology science.Every one may have a dream,and i still remember that my dream is to be a biology scientist (just like ZHU KE ZHEN).I liked to make wonders just like,where are we from?Where are we going in the universe?And then i would find the answers in book by myself.Still today i think that interest is the best teacher in one’s whole life (and knowledge comes from practice).

Second, i will introduce my major in the university.My major is Biological Engineering in *** University.It has a great relationship with biology scince.Their relationship can be shown with an example: Just like a river,biology science,which often finds new discoveries and theories, is at the head of the river.And my major,which lays more stress on practical use, seems to be at the end of it.When both of them interact well enough,the discovries and theories in biology science can be soon turned into products in all of the modern industry.

Four years’ university education gives me a lot of things to learn,a lot of chances to try,and a lot of practices to improve myself.It teaches me not only what to study and ho-w to think,but also to see the importance of practical ability (such as doing expriment as much as possible). In the university life,i have made many good friends.They help me improve my study and research ability, do ererything just like a man,and often give me good example to follow.

Besides what i have introduced myself above,i also have many interests in my spare time.I like playing football,which is an effective way i think to improve my body health,and it can teach me how to join in a group and deal with other people.Drawing and writing is another favor to me.

Above all,I choose the major in order to broad my view in biology scince,and enhance my research ability.I will do my best to join the new group and be good at postgraduate study.

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