大型低速柴油机铸铁气缸套的异常磨损率()mm/kh。
A.>0.08
B.>0.1
C.>0.2
D.>0.5
参考答案:B
The children all looked _____at the broken model plane and felt quite_____.
A.sad, sad
B.sadly, sadly
C.sad, sadly
D.sadly, sad
原料油含水量控制在<()%。
A.0.3
B.0.5
C.1