— Yes. I want to buy some novels. Could you please tell me ?
A:where is the nearest library
B:where the nearest library is
C:where the nearest bookstore is
D:where is the nearest bookstore
试管中有一些植物油,加入配制的消化液,充分振荡置于37℃,一小时后植物油不见了.配制的消化液可能是( )
一个长方体水槽,长1.5米,宽0.5,深0.4米.如果每分钟排水20升,10分钟排去整槽水的几分之几?