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

热氨融霜时，严禁用（）来加快冲霜速度。

A.关小冷凝器进气阀

B.关闭冷凝器进气阀

C.关小冷凝器冷却水

D.关闭冷凝器冷却水