A. clear syrupy liquid with no odor B. colorless-to-brown liquid with a choking odor when hot C. colorless liquid with a pleasant fruity odor D. whitish liquid with a faint,pleasant odor
A. 正确 B. 错误
A. 溶液没有达到饱和的区域 B. 溶液刚好达到饱和的区域 C. 溶液有一定过饱和度,但程度小,不能自发地析出结晶的区域 D. 溶液的过饱和程度大,能自发地析出结晶的区域