People have planted a great many trees in order to __________ wind and sand in the desert. [ ]A. hol

题目简介

People have planted a great many trees in order to __________ wind and sand in the desert. [ ]A. hol

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

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