—— The water changes into thick ice covering rivers and lakes in winter in Harbin.

—— ＿＿＿＿ in Urumqi and children go skating on it then.

A．So is it

B．So it does

C．So it is

D．So does it

下列哪种方法不可能用于分离饱和溶液中的溶质和溶剂

A．过滤

B．蒸发

C．蒸馏

D．结晶