Radium salts, which have been found to _____ in bones, give rise to cancers of the bone.A.pile upB.b

题目简介

Radium salts, which have been found to _____ in bones, give rise to cancers of the bone.A.pile upB.b

题目详情

Radium salts, which have been found to _____ in bones, give rise to cancers of the bone.
A.pile upB.build upC.keep upD.pull up
题型:单选题难度:偏易来源:不详

答案

 B
build up(="accumulate)" 积累。pile up 堆积。keep up 保持,维持。 pull up 停车。

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