Before entering space rockets must escape _____ the earth’s gravity.A.toB.offC.ofD.from-英语

题目简介

Before entering space rockets must escape _____ the earth’s gravity.A.toB.offC.ofD.from-英语

题目详情

Before entering space rockets must escape _____ the earth’s gravity.
A.toB.offC.ofD.from
题型:单选题难度:偏易来源:不详

答案

D

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