单选题：The United States of America is among the top 10 countries.（

题目内容：

The United States of America is among the top 10 countries.（　） A．Right
B．Wrong
C．Not mentioned

参考答案：

答案解析：

The scientists began to accumulate data.

The scientists began to accumulate data.A．collect B．handle C．analyze D．investiga

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Anyone with a medical degree can set up a medical practice in the US．A．Right B．W

分类：综合类题型：单选题