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问题 单项选择题

有关上睑下垂的诊断标准描述正确的是

A．坐位平视，上睑缘位于角膜上缘

B．坐位平视，上睑缘位于角膜上缘下1cm

C．上睑缘位于瞳孔中央

D．坐位平视，上睑缘位于角膜上缘与瞳孔上缘间的中点水平

E．坐位平视，上睑缘低于角膜上缘与瞳孔上缘间的中点水平

答案

参考答案：E

单项选择题

It is implied in the passage that ______.

A．the Maces believe a good career is even more important than their family life

B．Rodney's children are quite happy with the family situation

C．either a husband or a wife has to sacrifice his or her career for a firm family tie

D．the practice of sharing household jobs between husband and wife is commonplace in London
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单项选择题

呼吸衰竭严重缺氧可导致机体内的变化，下列哪项错误（）

A.可抑制细胞能量代谢的氧化磷酸化作用

B.可产生乳酸和无机磷，引起代谢性酸中毒

C.氢离子进入细胞内引起细胞内酸中毒

D.组织二氧化碳分压增高

E.体内离子转运的钠泵损害，引起细胞内高钾
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