單項選擇題
A.H7/3ab B.H7/h6 C.H8/h8 D.H7/k6
A.4 B.3 C.2 D.1
A.5 B.4 C.3 D.2
A.2.5 B.2.0 C.1.5 D.1
A.差 B.基本相同 C.略有差別 D.好
A.0.05-0.10 B.0.10-0.20 C.0.20-0.25 D.0.25-0.30
A.20.9 B.35 C.40 D.45
A.10-2 B.10-3 C.10-4 D.10-5
A.10-6 B.10-8 C.10-10 D.10-12
A.30 B.25 C.20 D.18
A.4-6 B.3-5 C.2-4 D.1-3