Byusingbothearsonecantellthedire

发布时间：2020-07-25 22:41:38

By using both ears one can tell the direction ________ a sound es.A.in whichB.from whichC.with whichD.through which

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A解析“in which a sound es”是一个定语从句，修饰direction。注意：direction通常与介词in连用。如：The birds flew in all directions.鸟飞向四面八方。
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