The Earth________three principal layers: the dense, iron-rich core, the mantle m

游客2023-12-25 3

问题 The Earth________three principal layers: the dense, iron-rich core, the mantle made of silicate rocks, and the thin, solid-surface crust.

选项 A、comprises
B、composes
C、consists
D、concedes

答案 A

解析 comprise和consist是同义词，但consist之后需跟介词of，而空后没有of，所以只能选A。

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