單項(xiàng)選擇題
A.12 B.15 C.8 D.10
A.36 B.32 C.25 D.40
A.0.2,0.1 B.0.4,0.3 C.0.3,0.5 D.0.3,0.4
A.0.2 B.0.3 C.0.4 D.0.5
A.2 B.3 C.1 D.0.5
A.100 B.150 C.200 D.250
A.50 B.100 C.150 D.200
A.0.5 B.0.6 C.0.7 D.0.8
A.2 B.3 C.4 D.5
A.手孔 B.小號(hào)人孔 C.中號(hào)人孔 D.大號(hào)人孔