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【单选题】
下列各组化合物互为同分异构体的是
A.
氯乙烷与氯乙烯
B.
氯仿与碘仿
C.
烯丙基溴与丙烯基溴
D.
苯氯甲烷与氯化苄
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参考答案:
举一反三
【判断题】厂用带负荷不多,因此电源的可靠性要求不高。
A.
正确
B.
错误
【简答题】The Summer Mountain Resort is famous for mountains, but the real attractions lie in the lake area.
【单选题】渗出液的相对密度是
A.
高于1.015
B.
低于1.015
C.
高于1.018
D.
低于1.018
E.
在1.015~1.018
【简答题】阅读填空。 Last Sunday, my father, my mother and I (1) w_____ to a summer camp. We went to the mountains, then we (2) g_____ to the foot of the mountain (3) b_____ bus. In the middle of the mountain there ...
【判断题】The Meridian Gate has five openings with the central passage reserved for the emperor alone.
A.
正确
B.
错误
【简答题】The full name of the USA is ( ).
【单选题】The car’s ________ was disappointing.
A.
mark
B.
manner
C.
behaviour
D.
performance
【简答题】The Meridian Gate, also known as _____________________(Five-phoenix Tower) is the main entrance to the Imperial Palace.
【判断题】The Meridian Gate has five gateways, and the central gateway is part of the Imperial Way.
A.
正确
B.
错误
【单选题】平面任意力系向其作用面内任一点简化,一般可以得到
A.
一个力
B.
一个力偶
C.
一个力和一个力偶
D.
无法确定
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