题目内容

急性肾衰竭电解质和酸碱平衡失调的防治，最主要是针对______

A. 代谢性酸中毒
B. 氮质血症
C. 高血磷
D. 高血钾

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They ought to ______ (have arrived, arrive) yesterday.

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A. had gone
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试论犯罪未遂的认定。

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