题目内容

心脏的正常起搏点是

A. 窦房结
B. 房室结
C. 房室束
D. 普肯耶氏纤维
E. 房室交界

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卵圆窝位于

A. 室间隔
B. 房间隔
C. 右心房前壁
D. 左心房前壁
E. 右心耳

参与心腔防止血液逆流的结构有

A. 二尖瓣
B. 三尖瓣
C. 腱索
D. 乳头肌
E. 主动脉瓣

心传导系包括

A. 房室结
B. 冠状窦
C. 窦房结
D. 房室束
E. Purkinje纤维网

The following description about the small talk, which one is not right?

A simple conversation.
B. The topic isn't important.
C. It doesn’t give many details.
D. It is full of many details.

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