重度失水是指失水程度占体重的（）。 A.2%以上 B.3%以上 C.4%以上 D.5_爱下问搜题

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问题单项选择题

重度失水是指失水程度占体重的（）。

A.2%以上

B.3%以上

C.4%以上

D.5%以上

E.6%以上

答案

参考答案：E

单项选择题

交感神经系统功能活动的意义在于

A．促进消化

B．保存能量

C．加速排泄

D．生殖

E．应付环境急骤变化

选择题

--- I hear Andy and Lily are going to have a party to celebrate their ten years of ____ .

--- Really? They have ____ for ten years?

A．marrying, married

B．marriage, married

C．marrying, got married

D．marriage, been married