单选题：The phrase "an area roughly the size of the United States" g

题目内容：

The phrase "an area roughly the size of the United States" gives an indication of the size of A．northern Africa
B．Niger
C．the Sahara
D．all of Africa

参考答案：

答案解析：

The Sahara can be described as

The Sahara can be described asA．a place of contrasts B．a place where no one live

分类：理工类题型：单选题

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分类：理工类题型：单选题