单项选择题
A.1.0 B.0.5 C.1.5 D.20
A.5 B.10 C.15 D.20
A.3kg B.1kg C.5kg D.2kg
A.6 B.10 C.16 D.20
A.0.3MPa B.0.5MPa C.0.6MPa D.1.0MPa
A.0.20 B.0.28 C.0.33 D.0.45
A.5℃ B.6℃ C.8℃ D.10℃
A.0.15m B.0.3m C.0.5m D.1.0m
A.80% B.85% C.90% D.100%
A.3 B.5 C.10 D.15
A.0.1 B.0.2 C.0.3 D.0.4