单项选择题
A.5.0-36.5% B.6.0-36.5% C.5.0-37.5% D.6.0-37.5%
A.3.8%；5-10分钟 B.1.9%；30分钟-1小时 C.1.9%；0.5小时 D.3.8%；1小时
A.5ml；10ml B.20ml；30ml C.10ml；20ml D.10ml；30ml
A.1h；1h B.30min；15min C.30min；30min D.15min；15min
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