题目内容
Mr Li has some trouble sleeping, so dinking a glass of milk before going to bed every night is his common ．
A．practice B．knowledge C．experience D．duty
A
考查名词词义辨析。解题关键是：掌握习语common practice惯例。
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题目内容
Mr Li has some trouble sleeping, so dinking a glass of milk before going to bed every night is his common ．
A．practice B．knowledge C．experience D．duty
A
考查名词词义辨析。解题关键是：掌握习语common practice惯例。