— Why not buy a second-hand car first if you don't have enough money for a new one?

— That's a good        .

A．saying

B．question

C．suggestion

D．account

下列说法正确的是：（　　）

A．用酒精制作溶剂的溶液，叫做酒精溶液

B．溶液里各个部分的性质是相同的

C．糖水里的糖不会分离出来

D．溶剂的体积加溶质的体积等于溶液的体积