交流发电机运转后,最初的激磁电流是依靠发电机内残磁产生的。

题型:判断题

问题:

交流发电机运转后,最初的激磁电流是依靠发电机内残磁产生的。

考点:汽车电器与电子技术电源系统电源系统题库
题型:判断题

( Eric came back home from school on Friday evening. )

Eric:Hi, Dad! I'm back.

Dad:Hmm, Eric ! How was your study this week?

Eric:Pretty goo  D. And I have good news to tell you. Do you want to know?

Dad:Of course. 小题1:______________________ ?

Eric:I won first prize in the English speech contest.

Dad:Well done. 小题2:your science? Any progress?

Eric:Yes, Dad! At least I tried my best and learned a lot from my mistakes.

Dad:Good! I' m sure that you can catch up with your classmates very soon.

Eric:Thank you, Dad! I've been busy these days and 1 feel tired. Shall we 小题3:______ tomorrow?

Dad:A picnic? Why not? We all need to relax ourselves.

Erie:Great! 小题4:? And what time?

Dad:Let's go to Central Park at 8:00 in the morning.

Eric:小题5:?

Dad:The radio says it' s a fine day. Finish your homework first and we can help mum do something for the picnic,

Eric :That' s wonderful, Dad.

题型:判断题

公安部门的职责有()

A.登记放射性同位素和放射源

B.负责对放射工作监督检查

C.组织实施放射卫生防护法规

D.检查放射性同位素和放射源保存、保管的安全性

E.参与放射事故处理

题型:判断题

对于出口货物,通常保险是按CIF发票金额加成()投保平安险。

A、10%

B、20%

C、5%

D、2%

题型:判断题

肥胖人群在饮食时应尽量避免的烹调方式是()。

A.煮

B.炖

C.拌

D.蒸

E.油煎炸

题型:判断题

成人心脏摄影的焦一片距为()

A.50cm

B.85cm

C.100cm

D.120cm

E.200cm

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