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The Peaks of a mountain range, acting like rocks in a streambed,produce ripples in the air flowing over them;the resulting flow with crests and troughs that remain stationary although the air that forms them is moving rapidly,arepattern, known as "standing waves".
A. crests and troughs that remain stationary although the air that forms them is moving rapidly,are B. crests and troughs that remain stationary although they are formed by rapidly moving air ,are C. crests and troughs that remain stationary although the air that forms them is moving rapidly,is D. stationary crests and troughs although the air that forms them is moving rapidly,are E. stationary crests and troughs although they are formed by rapidly moving air ,is
我想问一下A and B that...从句修饰的是B还是A and B呢?虽然动词是remain但是前面碰巧是troughs也是复数; E中adj.+A and B是修饰A呢还是A and B一起被这个形容词修饰呢?
谢谢 |
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