电感在直流稳态电路中相当于开路。

题型:判断题

问题:

电感在直流稳态电路中相当于开路。

考点:电路分析电路分析题库
题型:判断题

阅读理解。

     Mr Grey was the manager (经理) of a small office in London. He lived in the country, and came to work

by train. He liked walking from the station to his office if it was not raining, because it gave him some exercises. One morning he was walking along the street when a stranger (陌生人) stopped him and said to him," You

may not remember me, sir. But seven years ago, I came to London without any money in my pocket  (口袋).

I stopped you in this street and asked you to lend (借) me some money, and you lent me five pounds (英镑),

because you said that you were happy to take a chance (机会) so as to give a man a start on the road to

success (成功)." Mr. Grey thought for a few moments and then said, "Yes, I remember you. Go on (继续)

with your story."" Well," answered the stranger," are you still willing to (情愿) take a chance to help me?"

1. Mr. Grey walked to his office only when the weather was _________.

A. bad 

B. fine

C. raining

2. Mr. Grey walked because _________.

A. he was poor

B. it was not raining

C. it helped him in good health (健康)

3.Mr. Grey _________ the stranger some years ago.

A. had stopped

B. had met

C.  had helped

4. The stranger _________ since then.

A. had been successful

B. had still been poor

C. had been rich

5. Now the stranger wanted to _________.

A. ask for some money again

B. give Mr. Grey his money back

C. help Mr. Grey

题型:判断题

血白细胞增多、异型淋巴细胞比例常高于10%见于()

A.伤寒

B.流行性出血热

C.流行性乙型脑炎

D.中毒型痢疾

E.急性病毒性肝炎

题型:判断题

二尖瓣狭窄只有舒张中期隆隆样杂音,而无舒张晚期杂音是因为可能()

A.二尖瓣狭窄程度轻

B.二尖瓣狭窄程度重

C.合并房颤

D.只有二尖瓣后叶活动受限

E.左室后负荷加重

题型:判断题

患者男,30岁,右示指近节离断再植术后10h,发现再植指体发灰,皮温比健侧低3℃,可以采取的措施是().

A.继续观察

B.更换敷料

C.肌内注射罂粟碱60mg

D.溶栓治疗

E.手术探查

题型:判断题

月经后子宫内膜的增生起于()

A.子宫肌层

B.致密层

C.功能层

D.海绵层

E.基底层

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