试题与答案

引起继发性红细胞增多的原因是()。 A.急性大出血 B.脱水血液浓缩 C.严重心肺疾

题型:单项选择题

题目:

引起继发性红细胞增多的原因是()。

A.急性大出血

B.脱水血液浓缩

C.严重心肺疾病

D.严重组织损伤

E.以上均是

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:本题涉及条约的效力问题。根据《维也纳条约法公约》第30条“关于同一事项先后所订条约之适用”的规定,甲乙既是旧约的当事国,又是新约的当事国时,以新约代替旧约。就甲乙两国而言,新约的效力...

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