People have planted a great many trees in order to ________ wind and sand in the desert. [ ]A.hold d

题目简介

People have planted a great many trees in order to ________ wind and sand in the desert. [ ]A.hold d

题目详情

People have planted a great many trees in order to ________ wind and sand in the desert. 
[     ]
A.hold down  
B.hold up
C.hold back  
D.hold out
题型:单选题难度:中档来源:同步题

答案

C

更多内容推荐