425.Because of Einstein Theory of Relativity,scientists neve

水墨间2022-10-04 11:39:541条回答

425.Because of Einstein Theory of Relativity,scientists never regarded the world ____again.
A.as before they did
B.as they regarded before
C.as they did before
D.as they had before
427.For water ____ more easily,it's quite necessary to use a larger pipe here.
A.to flow
B.flowed
C.flowing
D.flows
433.I want a secretary with ____ knowledge of English and ____ experience of office routine.
A.a...an
B./.../
C.a.../
D./...an
请问这道题为什么不能选择CDA
DAC

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fengjun1 共回答了18个问题 | 采纳率72.2%: 1.选D不选C是因为as they ... before与regarded相比是过去的过去,所以用过去完成时,体现时间的先后.
2.to flow是动词不定式作目的状语,即：为了让水流得更顺畅,有必要在这儿用一个大点的管子.如果还不明白的话,你可以这样理(In order) for water to flow easily,... 所以自然是选A不选D啦.
3."办公室工作经验“是抽象的,只是泛指这方面经验,所以用零冠词,而”英语知识“是强调知识的一种,单一事物,所以用"a".所以选C不选A.
:); 1年前

425.Because of Einstein Theory of Relativity,scientists neve

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