单项选择题
A.1 B.2 C.3 D.4
A.0402 B.0603 C.1005 D.1608
A.GZ/PZ B.PZ/HZ C.HZ/HPZ D.HPZ/UPZ
A.20 B.25 C.30 D.35
A.0-4 B.0-8 C.1-4 D.1-8
A.12 B.24 C.36 D.48
A.0.01 B.0.02 C.0.03 D.0.04
A.6-10 B.8-12 C.10-16 D.10-17
A.0.01015 B.0.01510 C.0.01500 D.0.01515
A.60 B.70 C.80 D.90