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问题 单项选择题

休克时胃肠道黏膜缺血、缺氧可使正常黏膜 ( )

A．内皮细胞
B．尿量减少
C．再灌注损伤
D．网状内皮细胞受损
E．上皮细胞屏障功能受损

答案

参考答案：A

单项选择题

Questions 24-30


·Look at the questions for this part.
·You will hear a passage about job. You will listen to it twice.
·For questions 24-30, indicate which of the alternatives A, B, or C is the most appropriate response.
·Mark one letter A, B, or C on the Answer Sheet.

The Maces ______.

A．neglect their children

B．always manage to spend some time with their children

C．have helped find friends for their children
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选择题
已知集合A、B，若A不是B的子集，则下列命题中正确的是 （　　）
A．对任意的a∈A，都有a∉BB．对任意的b∈B，都有b∈A
C．存在a0，满足a0∈A，a0∉BD．存在a0，满足a0∈A，a0∈B
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