Rocks (form) within Earth are called intrusive or plutonic rocks (because the) magma (from which) they form often intrudes into

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问题 Rocks (form) within Earth are called intrusive or plutonic rocks (because the) magma (from which) they form often intrudes into (neighboring) rock.

选项 A、form
B、because the
C、from which
D、neighboring

答案A

解析
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