单项选择题
A.-1℃ B.0℃ C.1℃ D.5℃
A.1,0.1mm B.0.01,1mm C.0.1,0.01mm D.1,1mm
A.6h B.12h C.18h D.24h
A.0.5 B.0.6 C.0.7 D.0.8
A.7d B.14d C.28d D.56d
A.10 B.20 C.15 D.30
A.1.2 B.1.5 C.1.8 D.2
A.200r/min~300r/min B.0r/min~200r/min C.300r/min~400r/min D.400r/min~600r/min
A.≤10.0%;≥10.0MPa B.≤15.0%;≥10.0MPa C.≥10.0%;≤10.0MPa D.≥10.0%;≥10.0MPa
A.0.25 B.0.35 C.0.4 D.0.45
A.1;3 B.3;1 C.2;4 D.4;2