题目内容

【题目】The center of gravity of the human body ______ behind his joint. ( )

A.locatedB.locatingC.to locateD.is located

【答案】D

【解析】

句意：人体的重心位于关节后面。横线上是个谓语，只有A、D可作谓语，排除B、C。 这是个被动句，排除A。故选D。

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