单选题：What is one of the precautions that Japan has taken?

题目分类：公共英语四级
题目类型：单选题
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题目内容：

What is one of the precautions that Japan has taken? A．They make sure that they are askin9。flight passengers if they are sick．
B．They are taking a temperature of every passenger when they get off the airplane．
C．They are screening passengers on flights from Mexico
D．They are forbidding people travelling to Mexico

参考答案：

答案解析：

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