胸部X线检查可见心影向两侧扩大，随体位变化而变化，估计心包腔_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 B型题

胸部X线检查可见心影向两侧扩大，随体位变化而变化，估计心包腔内液体已超过（）

A.<30ml

B.50ml

C.150ml

D.250ml

E.500ml

答案

参考答案：D

选择题

You had a good time during the May Day holiday, _____ you? [ ]

A. hadn't

B. didn't

C. haven't

问答题简答题

简述完井工程的定义。