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【单选题】
换热器基础上活动支座的地脚螺栓装有两个锁紧螺母,螺母与底板之间应留( )的间隙,使底板能自由滑动。A.
0~3mm
B.
1~4mm
C.
2~4mm
D.
1 ~ 3mm
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举一反三
【简答题】The students of Portuguese and Spanish origins are called ______.
【简答题】A) selections B) collections C) sources D) origins
【单选题】听力原文：Unlike her husband, Alice believes that it is useless to subscribe to more than one news magazine. (24)
A.
Alice subscribes to more news magazines than her husband.
B.
Alice told her husband that he should like news magazines.
C.
Alice's husband considers it worthwhile to subscribe to several news magazines.
D.
Neither Alice nor her husband reads new magazines.
【简答题】A) ends B) backgrounds C) bases D) origins
【单选题】What is the best title of the passage?
A.
An Introduction of the Kindergarten
B.
The Origins of the Kindergarten
C.
The Foundation of the Kindergarten
D.
The Development of the Kindergarten
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