It was a pity that he __ blind, but to the joy of his family, his dream of becoming a musician _____ true at last.

A．came; came

B．went; went

C．came; went

D．went; came

为了减少病人含氮代谢废物的产生和维持氮的总平衡，合适的方法是（）

A.尽量减少蛋白质的供应量

B.禁食蛋白质的食物

C.摄取低蛋白高糖饮食

D.只供给充足的糖

E.低蛋白、低糖、低脂肪食物