A.計(jì)算至0.1%,含水量差值不大于0.1% B.計(jì)算至1%,含水量差值不大于1% C.計(jì)算0.1%,含水量差值不大于1% D.計(jì)算1%,含水量差值不大于2%
A.2次、6mm B.5次、5mm C.2次、5mm D.5次、6mm
A.45min B.1h C.30min D.1.5h