胸骨左缘第3～4肋间有收缩期震颤，提示（） A.动脉导管未闭 B._爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题 A1/A2型题

胸骨左缘第3～4肋间有收缩期震颤，提示（）

A.动脉导管未闭

B.二尖瓣狭窄

C.室间隔缺损

D.主动脉瓣关闭不全

E.主动脉瓣狭窄

答案

参考答案：C

选择题

I felt surprised that anyone of his intelligence ________ such an easy test.

A．might have failed

B．could have failed

C．should have failed

D．must have failed

问答题论述题

请说明如何依据GB／T9001—2008标准审核“产品的监视和测量”过程。