The melon the Smiths served at dinner would have tasted ________ if it had been put in the fridge for a little while.

A．good

B．better

C．best

D．well

向一瓶接近饱和的氯化铵溶液中逐渐加入氯化铵晶体，下列符合溶液中溶质质量变化规律的是[ ]

A．

B．

C．

D．