The Sahara Desert is a naturalbetweennorth and central Africa.[ ]A. fenceB. barrierC. difficultyD. b

题目简介

The Sahara Desert is a naturalbetweennorth and central Africa.[ ]A. fenceB. barrierC. difficultyD. b

题目详情

The Sahara Desert is a natural        between  north and central Africa.
[      ]
A. fence        
B. barrier
C. difficulty    
D. border
题型:单选题难度:中档来源:同步题

答案

B

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