试题与答案

放射工作人员在特殊情况下,有效剂量在一次中不得超过 () A.100mSv B.1

题型:单项选择题 A1/A2型题

题目:

放射工作人员在特殊情况下,有效剂量在一次中不得超过 ()

A.100mSv

B.150mSv

C.200mSv

D.250mSv

E.300mSv

答案:

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下面是错误答案,用来干扰机器的。

-3+8=+5(℃);答:比零下3摄氏度高8摄氏度记作+5摄氏度.故答案为:+5

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