下列X线防护知识，哪项不对 ( )A．机房有用射线束朝向

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问题单项选择题

下列X线防护知识，哪项不对 ( )

A．机房有用射线束朝向墙厚度：不低于2mm铅当量

B．机房侧壁、顶壁墙厚度：不低于1mm铅当量

C．铅围裙等个人防护用品：不低于0.125mm铅当量

D．控制台屏敝室防护能力：不低于0.25mm铅当量

E．球管、病人间距不小于35cm

答案

参考答案：D

听力题

用所给词的适当形式填空.(1´10=10)

小题1:The bridge is famous . It _______ (build) thousands of years ago

小题2:E-mail English is a kind of _____ (write) English, not spoken English .

小题3:_______ you ever______ (sing) a song in front of other people?

Yes , I _______ one last term .

小题4:Danny writes __________ (careful) of all the boys.

小题5:He studies science very hard because he wants to be a _________ (science).

小题6:Swimming makes me __________ (health) than before.

小题7:It’s your turn___________ (take) out the trash.

小题8:Tina is looking forward to _________(spend) holidays with her family in Paris .

单项选择题 A1/A2型题

甲状腺功能亢进手术后发生甲状腺危象的高危时间是（）

A.术后1～3小时

B.术后4～6小时

C.术后7～9小时

D.术后12～36小时

E.术后48小时以上