结石阻滞胆管所引起的上腹痛的疼痛性质为（）。 A.刺痛 B.胀痛_爱下问搜题

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问题单项选择题 A1型题

结石阻滞胆管所引起的上腹痛的疼痛性质为（）。

A.刺痛

B.胀痛

C.绞痛

D.掣痛

E.灼痛

答案

参考答案：C

选择题

—Ann, can you see ?
—No. Let's go and have a look. Maybe the children are in trouble.

A. what was happening there
B. what are they doing there
C. what is happening there
D. what they talk about there

判断题

泵与风机采用变速调节可以提高运行效率。