— Mr Smith never means what he says．I dislike him．

— ______________, as the saying goes．

A．A single flower does not make a spring

B．A still tongue makes a wise head

C．A man of words and not of deeds is like a garden full of weeds

D．Actions speak louder than words．

如何理解呕吐一病中可吐与止呕，可下与禁下的含义