单项选择题
A.70g~90gB.80g~100gC.85g~100gD.90g~95g
A.0.38m~0.51mB.0.30m~0.40mC.0.35m~0.45mD.0.33m~0.45m
A.0.03B.0.05C.0.08D.0.1