社会关系上的整合:

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问题:

社会关系上的整合:

考点:科学技术哲学科学技术哲学题库
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下列关于北京人的表述,不正确的一项是 [ ]

A.还保留着猿的一些体质特征,但已经能够直立行走

B.上肢发展较快,基本上具备了现代人的特点

C.已经会制造不同用途的石制工具

D. 已经学会了人工取火

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若函数f(x)=
(2b-1)x+b-1,(x>0)
-x2+(2-b)x,(x≤0)
在(-∞,+∞)上为增函数,实数b的取值范围是______.
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阅读下面短文,掌握其大意,然后从41—60题各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

It was raining.I went into a café and asked for a coffee.  41  I was waiting for my drink, I realized there were other people in the place, but I sensed   42 .I saw their bodies, but I couldn’t feel their souls   43  their souls belonged to the   44 .

I stood up and walked between the tables.When I came to the biggest computer, I saw a thin, small man   45  in front of it.“I’m Steve,” he finally answered after I asked him a couple of times what his name was.“I can’t talk with you.I’m   46 ,”he said.He was chatting online and,   47 , he was playing a computer game—a war game.I was   48  .

Why didn’t Steve want to talk with me? I tried   49  to speak to that computer geek(怪人),   50  not a word came out of his mouth.I touched his shoulder, but no reaction(反应).I was   51 .I put my hand in front of the monitor, and he started to shout, “   52 !”

I took a few steps back, wondering if all those people in the café were looking at me.I   53 , and saw nobody showed any interest.

 54 , I realized that the people there were having a nice conversation with their machines, not with people.They were more   55  having a relationship with the   56 , particularly Steve.I wouldn’t want to   57  the future of human beings if they preferred sharing their lives with machines   58  with people.

I was worried and sank in my thoughts.I didn’t even   59  that the coffee was bad,   60  Steve didn’t notice there was a person next to him.

小题1:.

A.Before

B.Since

C.Although

D.While小题2:.

A.pain

B.loneliness

C.sadness

D.fear小题3:.

A.because

B.when

C.until

D.unless小题4:.

A.home

B.world

C.Net

D.Café小题5:.

A.sleeping

B.laughing

C.sitting

D.learning小题6:.

A.busy

B.thirsty

C.tired

D.sick小题7:.

A.first of all

B.just then

C.at the same time

D.by that time小题8:.

A.surprised

B.delighted

C.moved

D.frightened小题9:.

A.once

B.again

C.first

D.even小题10:.

A.but

B.so

C.if

D.or小题11:.

A.excited

B.respected

C.afraid

D.unhappy小题12:.

A.Shut up

B.Enjoy yourself

C.Leave me alone

D.Help me out小题13:.

A.walked about

B.walked out

C.raised my hand

D.raised my head小题14:.

A.From then on

B.At that moment

C.In all

D.Above all小题15:.

A.interested in

B.tired of

C.careful about

D.troubled by小题16:.

A.computer

B.soul

C.shop

D.geek小题17:.

A.tell

B.plan

C.imagine

D.design小题18:.

A.other than

B.instead of

C.except for

D.as well as小题19:.

A.pretend

B.understand

C.insist

D.realize小题20:.

A.as if

B.just as

C.just after

D.even though

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在“用双缝干涉测量光的波长”的实验中,准备了下列器材:

A.白光光源,B.双缝片,C.单缝片,D.滤光片,E.毛玻璃屏.

实验步骤有:

①取下遮光筒右侧的元件,调节光源高度,使光束能直接沿遮光筒轴线把屏照亮;

②按合理顺序在光具座上放置各光学元件,并使各元件的中心位于遮光筒的轴线上;

③用米尺测量双缝到屏的距离;

④用测量头测量数条亮纹间的距离.

(1)把它们安装在光具座上时,合理的顺序依次是AD______E;(填字母即可)

(2)在操作步骤②时还应注意:单双缝间距5-10cm,单缝和双缝互相平行;

(3)将测量头的分划板中心刻线与某亮纹中心对齐,将该亮纹定为第1条亮纹,记录读数:然后同方向转动测量头,使分划板中心刻线与第7条亮纹中心对齐,记下此时示数,求得相邻亮纹的间距△x=1.925mm;

(4)已知双缝间距d=2.0×10-4m,测得双缝到屏的距离L=0.600m,求得所测单色光波长为______nm.

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简述政治部(处)主任的主要职责?

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