2009-2010学年江苏省射阳县盘湾中学高二下学期期中考试（英语）

适用年级：高二
试卷号：68886

试卷类型：期中
试卷考试时间：2017/7/20

1.单项选择(共1题)

The radiation amount of a mobile phone for two half-hour periods per day is equal to ______ to an X-ray for ten seconds.

A．expose

B．exposing

C．exposed

D．being exposed

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试卷分析