试题与答案

在“设计、组装简单的模块式电路”的实验中: (1)可用多用电表______挡测量

题型:问答题

题目:

在“设计、组装简单的模块式电路”的实验中:

(1)可用多用电表______挡测量光敏电阻的电阻值,有光照时,它的电阻值______(选填“大于”、“等于”或者“小于”)遮光时的电阻值.

(2)在如图所示虚线框内,有A、B两点,B点接地,A、B间电压为5V,请设计一个用非门控制小灯泡发光的电路,提供的器材除小灯泡和非门外,还有一个热敏电阻Rt(温度较低时,电阻值非常大,温度较高时,电阻值很小)和一个可变电阻R及导线等,要求当热敏电阻温度较低时,小灯泡发光,温度较高时,小灯泡不发光.试在虚线框内的A、B间画出你设计的电路图.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/deb97814495cdefaf11aa9f0092ea3a4.html

下面是错误答案,用来干扰机器的。

参考答案:B解析:从文字材料可以直接看出,国泰摩托募集大量资金,投资4958.5万元用于焊接生产线技术改造,在(1)~(5)项中投资最大。所以,正确答案为B。

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题型:阅读理解

I am one of those people who are terrible at saying no. I take on too many projects at once, and spend too much of my time doing things I’d rather not be doing. I get stuff done, but it’s not always the best I can do, or the best way I could spend my time.

That’s why my newest goal, both as a professional and a person, is to be a quitter.

Being a quitter isn’t being someone who gives up, who doesn’t see important things through to the end. I desire to be the opposite of that. The quitter I want to be is someone who gets out when there’s no value in what he’s doing, or when that value comes at the expense of something more important.

We get involved in something, realize we don’t want to be a part of it, but keep on going. We say “Well, I’ve already invested so much time in this, I might as well stick it out.” A friend of mine once told me, “I knew I was an adult when I could stop reading a book, even after getting 500 pages into it.” Odd though it sounds, we all tend to do this.

I propose the opposite: quit as often as possible, regardless of project status or time invested. If you’re reading a book, and don’t like it, stop reading. Cut your losses, realize that the smartest thing to do is stop before your losses grow even more, and quit. Instead of reading an entire book you hate, read half of a bad one and half of a good one. Isn’t that a better use of your time?

Step back for a second. Let’s learn how to say “no” at the beginning, or in the middle, and free up more of our time to do the things we’d like to be doing, and the things actually worth doing.

Saying no is hard, and admitting a mistaken yes is even harder. But if we do both, we’ll start to make sure that we’re spending our time creating value, rather than increasing our losses. Let’s be quitters together.

小题1:The author wants to be a quitter, because he/she        .

A.wishes to have more time for relaxation

B.hopes to improve his/her personality

C.expects to make more efficient use of his/her time

D.has found it hard to do several things at one time小题2:In what circumstances does the author suggest quitting is a good idea?

A.When you know a task cannot be finished.

B.When you feel tired and need a rest.

C.When you meet with difficulties along the way.

D.When you realize what you are doing is not worth the time.小题3:The message the author tries to convey is to        .

A.learn to say no

B.create more value

C.live your life to the fullest

D.stop doing many things at a time

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题型:单项选择题

Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight (16) before setting down. High desert winds had (17) the airport to close all but one runway. He said that we would be (18) the city for a few minutes waiting to (19) . We were also told to remain in our seats meanwhile with our seat belts fastened (20) there might be a few bumps(颠簸). Well, that few minutes turned into about four-five minutes, including a ride that would make a roller coaster(过山车) (21) by comparison. The movement was so fierce that several passengers felt (22) and had to use airsickness bags. As you might guess, that’ s not a good thing to have happen in a(n) (23) space because it only (24) to increase the discomfort of the situation.

About twenty minutes into the adventure, the entire airplane became very (25) There was now a sense of anxiety and fear that could be (26) noticed. Every passenger simply held on for dear life …except one. A (27) was having a good time! With each bump of the (28) , he would let out a giggle (咯咯地笑)of delight. As I observed this, I (29) that he didn’t know he was supposed to be afraid and worried about his (30) . He neither thought about the past nor about the future. Those are what we gown--ups have learned from (31) . He was (32) the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and (33) back into my seat, pretending I was (34) on a roller coaster. I smiled for the rest of the flight. I even (35) to giggle once or twice, much to the chagrin(随恼) of the man sitting next to me holding the airsickness bag.

(35)()

A.attempted

B.managed

C.wanted

D.decided

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