單項(xiàng)選擇題
A.≤6.0% B.≤8.0% C.≤10.0% D.≤12.0%
A.≤150g B.≤160g C.≤170g D.≤180g
A.30%,70% B.70%,30% C.20%,80% D.80%,20%
A.0.01% B.0.1% C.1% D.2%
A.0.5m B.1m C.2m D.3m
A.10~20,2 B.10~20,3 C.15-25,2 D.15-25,3
A.-201,≥20 B.-20±3,≥20 C.-2+1,≥30 D.-20±3,≥30
A.10~20,12 B.10~20,24 C.15~25,12 D.15~25,24
A.三件,自然干燥 B.五件,自然干燥 C.三件,潮濕 D.五件,潮濕
A.0.01MPa B.0.1MPa C.1MPa D.10MPa
A.0.1N B.1N C.5N D.10N