Radium salts,which have been found to ______ in bones,give rise to bone cancer.A.pile upB.build upC.

题目简介

Radium salts,which have been found to ______ in bones,give rise to bone cancer.A.pile upB.build upC.

题目详情

Radium salts,which have been found to ______ in bones,give rise to bone cancer.
A.pile up B.build upC.keep up D.pull up
题型:单选题难度:中档来源:不详

答案

B
考查短语辨析。build up(="accumulate)" 积累。pile up 堆积。keep up 保持,维持。 pull up 停车。根据句意选B。

更多内容推荐