( 3分)有一瓶硫酸钠溶液可能混有少量氯化钠，请设计实验方案检验溶液中氯化钠是否存在：_______________________________________________________________

— Dear, I can find a better job if I go to the USA, maybe.

— Don't be silly. ________, you know.

A．A bad beginning makes a bad ending

B．A golden key can open any door

C．A bird in the hand is worth two in the bush

D．Actions speak louder than words