静电电压表只能用来测量直流电压,不能用来测量交流电压。

题型:判断题

问题:

静电电压表只能用来测量直流电压,不能用来测量交流电压。

考点:电气工程公共基础第三节电动机与变压器第三节电动机与变压器题库
题型:判断题

下图为等高线分布图,若图中等高线的数值皆由左上方向右下方递减,完成2--3题。

小题1:若四幅图中的等高距皆为50米,比例尺分别为1:10000、1:20000、1:30000、1:40000,则其坡度由大到小的排序是

A.①>②>③>④

B.②>③>①>④

C.①>④>③>②

D.④>①>③>②小题2:若四幅图中的比例尺皆为1:10000,等高距分别为10米、20米、30米、40米,则其坡度由大到小的排序是

A.①>②>③>④

B.④>③>②>①

C.①>④>③>②

D.④>①>③>②

题型:判断题

下列物质中,不属于电解质的是()。

A.固体氯化钠

B.硫酸

C.铜丝

D.氯离子

题型:判断题

下图为某地区等高线地形图(单位:米),读图完成下列问题。

小题1:图中“M-N”一线沿途(  )

A.高差最大达300米

B.海拔最低处为30米

C.丙处为谷地

D.经过两个鞍部小题2:在甲、乙、丙、丁四处观察,正确的判断是(  )

A.甲处能看到乙处

B.乙处能看到丙处

C.丁处能看到丙处

D.甲处能看到丁处

题型:判断题

“The Chinese Dream” is a hot topic of this year. Many Chinese young people are inspired(激励) by the Chinese Dream. Everyone has their own dreams. They give us courage and confidence(信心) to keep us going through difficulties. Here is some advice on how to realize our beautiful dreams.

Never giving up is the key to make our dreams come true. We may fail from time to time, but we can learn from failure(失败), correct our mistakes and try again until we achieve our goals. Our life is like a long journey which is not all roses. It sometimes has wind and rain. We believe rainbows(彩虹) will appear after storms.

Cooperation(合作)is also necessary. Everyone likes a person who is good at cooperating with others. Besides, in our society most problems can’t be solved by one person alone. Cooperation is becoming one of the most important ways for people living in the developing society.

At the same time, we should learn to examine our abilities because it helps us know our advantages and disadvantages as well as get a full control of ourselves. Then we may be confident enough to face challenges.

Follow the suggestions above, and our dreams are sure to come true.

根据短文内容,按要求完成下列各题。

小题1:What inspires many Chinese young people?

小题2: What is the key to make our dreams come true?

小题3:How many suggestions of making dreams come true are mentioned in this passage?

小题4:从短文中找出与下面句子画线部分意思最相近的单词。

We may fail from time to time.          ________ 

小题5: In the passage, the underlined word “It” refers to(指) ________ .

题型:判断题

通常沿起始进近航段至中间定位点要提供航迹引导,在精密进近时进入中间定位点的最大切入角为:().

A.30°

B.70°

C.90°

D.120°

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