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【判断题】
主保护或断路器拒动时，用来切除故障的保护是辅助保护A.
正确
B.
错误
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举一反三
【单选题】It was not until he arrived in class _____ realized he had forgotten his book.
A.
when he
B.
that he
C.
and he
D.
he
【单选题】Hemingway told his editor Max Perkins that the book was not so much about a generation being lost, but that “the earth abideth forever.” He thought the characters in _____ may have been “battered” but...
A.
Farewell to Arms
B.
The Old Man and the Sea
C.
The Sun Also Rises
D.
The Snow of Kilimanjaro
【单选题】Hemingway told his editor Max Perkins that the book was not so much about a generation being lost as about "the earth abideth forever." He thought the characters in _____ may have been "battered" but ...
A.
Farewell to Arms
B.
The Old Man and the Sea
C.
The Sun Also Rises
D.
The Snow of Kilimanjaro
【简答题】造血组织主要由 和 组成。
【简答题】造血组织由_____组织和______细胞构成
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