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问题 单项选择题

怀疑椎动脉开口部狭窄患者，行椎动脉造影时，导管头端应放置在（）

A.椎动脉开口部

B.主动脉弓

C.锁骨下动脉椎动脉开口部近端

D.锁骨下动脉椎动脉开口部远端

答案

参考答案：C

改错题

  Some students believe that whether they have much money or large possessions, they will be happy. They believe that they will be able to do anything they wanted to do if they have money. Some students think that they should be good health, and enjoy whatever they like. Many students wish to have much wealth from their parents. In this way, they don’t have to work hardly and they can own everything. I don’t quite agree on the above points. I don’t think money means happy. We cannot buy much things with money, such as health, happiness and knowledge. I value knowledge, it makes me happy, for I can do a lot of for mankind with knowledge. Although different people value happiness differently, me wealth of happiness is in my study.
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填空题

药品召回的责任主体是（）。
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