煤样在空气中连续干燥1小时后，煤样的质量变化不超过0。1%时，煤样达到（）。

B.一1%

C.半0.1%

D.一0.1%

A.0.01%

B.0.02%

C.0.1%

D.0.2%

A.0.01%;

B.1%;

C.0.1%

A.0.1g

B.0.1%

C.0.01%

D.0.01g

A.0.1g

B.0.1%

C.0.01%

D.0.01g

A. 1%

B. 0.1%

C. 0.01%