问题
单项选择题
心脏有一结构叫卵圆窝，在什么解剖结构上（）.
A.在左房的左心耳上
B.在房间隔上
C.在肺动脉上
D.在主动脉上
E.在室间隔上
答案
参考答案：B
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心脏有一结构叫卵圆窝，在什么解剖结构上（）.
A.在左房的左心耳上
B.在房间隔上
C.在肺动脉上
D.在主动脉上
E.在室间隔上
参考答案：B
A: How are you going to spend this long summer holiday, Xiao Ming? B: I’m going to visit Hainan Island. A: 小题1: __ B: No, I’llgo there by myself. A; _小题2: _ B; By plane. It takes only about two hours to get there. A:__小题3: __ B; Thank you very much. How about you? A: I’ll go back to my hometown to see my parents. B:__小题4: __ A; My pleasure. B; Thank you. A: You’ re welcome.
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