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【单选题】
断电型时间继电器它的动合触点为A.
闭合的动合触点
B.
瞬动动合触点
C.
瞬时闭合延时断开的动合触点
D.
瞬时断开延时闭合的动合触点
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【简答题】汽车上的双雨刮器采用的是 机构
【单选题】What do you do to【21】care of the books in your library? Some of the most collectors【22】to read the books in their collection【23】the books remain in mint【24】. Others buy two copies of a book they【25】on...
A.
put
B.
get
C.
take
D.
give
【单选题】Color is very important to most animals for it helps them to get along in the world. Color【21】to make an animal difficult for its enemies to【22】. Many animals match their【23】 so well that as long as t...
A.
helps
B.
contributes
C.
tries
D.
manages
【简答题】汽车上的双雨刮器采用的是 ___________ 机构。
【简答题】根据下列句子及所给单词的首字母，写出各单词的完全形式（每空限填一词）。 1. Of the twelve m_____ in the year, January comes first. 2. Jackie, do remember to wash your hands b_____ the meal! 3. Mary's suitcase was too heavy; Mike c_____ i...
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