电流继电器的动作值整定是通过改变铁心气隙来实现的。

题型:判断题

问题:

电流继电器的动作值整定是通过改变铁心气隙来实现的。

考点:电力机车电工考试中级机车电工中级机车电工题库
题型:判断题

阅读判断正误,正确的用T,错误的用F。

Mr. Wang and Mr. Li go to London to see a friend. They don’t know much English and they know little about London. They can’t find their friend’s house. They walk in the street for a long time. Then they see a man near a bus stop. They go up to him and ask the way. The man smiles(微笑)but say nothing. Then he puts his hand into his bag and takes out a book. He opens the book and reads. "I’m sorry, I can’t speak English." In the evening,they find their friend’s house with the help of a policeman.

小题1:Mr. Wang and Mr. Li know a lot about London.

小题2:They can speak much English.

小题3:The man near the bus stop helps them find their friend’s house.

小题4:They don’t see any policeman in London.

小题5:The man near the bus stop can’t speak much English like Mr. Wang and Mr.1i.

题型:判断题

下列财产应该收归国家所有的是______。

A.所有人不明的埋葬物、隐藏物
B.遗失物
C.漂流物
D.失散的饲养动物

题型:判断题

《阴阳应象大论》“壮火散气”,其气指的是()

A.元气

B.精气

C.阳气

D.卫气

E.正气

题型:判断题

A、B、C、D、E、F、G为常见物质,其中C为淡黄色固体.甲、乙、丙为常见气体.各物质的转化关系如图所示.

回答下列问题:

(1)C的名称是______;D的俗称______;F的化学式______;

A+甲→C的反应条件是______.

(2)在一定条件下,甲+乙→F,该反应属于______.

①氧化还原反应②非氧化还原反应③化合反应④分解反应 ⑤复分解反应⑥置换反应⑦离子反应

(3)写出下列变化的离子方程式.

①A+F→E+乙:______.

②D+F+丙→G:______.

题型:判断题

()社会对希腊文化的发展有着决定意义。

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