單項(xiàng)選擇題
A.0.5% B.1% C.1.5% D.2%
A.5~10min B.10~15min C.15~20min D.20~25min
A.100~300g B.300~900g C.1000~2000g D.2000~4000g
A.0.5 B.1 C.1.5 D.2
A.5~10cm B.10~15cm C.15~20cm D.20cm以上
A.5 B.7.5 C.10 D.10.5
A.0.01 B.0.02 C.0.03 D.0.05
A.中性 B.堿性 C.酸性
A.12h B.20h C.24h D.10h
A.25ml B.50ml C.150ml D.200ml
A.大于5mm B.小于5mm C.大于2mm D.小于2mm