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问题 单项选择题

低钾血症最早的表现

A．口苦

B．恶心，呕吐

C．肌无力

D．肠麻痹

E．心电图出现T波降低，变宽，倒置等

答案

参考答案：C

解析：[解题思路] 低钾血症最早的表现是肌无力。

单项选择题

Many students agreed to come, but some students against because they said they don’t have time.

A. were against because they said they did not
B. were against because they say they don’t
C. were against it because they said they did not
D. were against coming because they said they don’t
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问答题 简答题

什么是在结晶现象？
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