阻碍自由电子定向移动的物理量叫()。A.电源 B.电流 C.电压 D.电阻

题型:单项选择题

问题:

阻碍自由电子定向移动的物理量叫()。

A.电源

B.电流

C.电压

D.电阻

考点:铁路线路工技能考试初级工线路工综合练习初级工线路工综合练习题库
题型:单项选择题

Mark Twain, the famous American writer, was traveling in France. Once he was going by train to Dijon. That afternoon he was very tired and wanted to sleep, so he asked the conductor to wake him up when they came to Dijon. But first he explained that he was a very heavy sleeper. “I’ll probably protest(表示不满)loudly when you try to wake me up,” he said to the conductor, “but do not take any notice, just put me off the train anyway.”

Then Mark Twain went to sleep. Later, when he woke up, it was night-time and the train was in Paris already. He realized at once that the conductor had forgotten to wake him up at Dijon. He was very angry. He ran up to the conductor and began to shout at him.“I have never been so angry in all my life,” Mark Twain said.

The conductor looked at him calmly. “You are not half so angry as the American whom I put off at Dijon,” he said.

小题1:Who’ s Mark Twain?  ______________

A.A French writer.

B.A famous artist.

C.An American writer.

D.A traveler.小题2:Mark Twain wanted to sleep because_________.

A.he was tired

B.he was hungry

C.he was a lazy man

D.he liked sleeping小题3:When he woke up, the train got to______.

A.Dijon

B.London

C.Paris

D.New York

题型:单项选择题

a减去b的差的一半与a与b的积的和.

题型:单项选择题

私人投资一般是一国的个人或企业的赢利为目的而对他国的经济活动进行的投资。

题型:单项选择题

弥散性血管内凝血,下述实验室检查不正确的是

A.出血时间延长

B.凝血时间延长

C.血小板计数正常

D.血块收缩不佳

E.束臂试验阳性

题型:单项选择题

如果获取审计证据很困难或成本很高,注册会计师可以以此为由减少不可替代的审计程序。( )

更多题库