Prices reach equilibrium at the level at which quantity dema

Prices reach equilibrium at the level at which quantity demanded ______ quantity supplied.

A．is equal to

B．equal

C．equals to

D．is equal

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wsks2005 幼苗

共回答了21个问题采纳率：95.2% 举报

A 语法结构题。本句的难点是：be equal to意为“与…相等”，等于及物动词equal。任at which引导的定语从句中，主语为第三人称单数，而[B]项equal又没有词尾s，C.和D.两项的形式又不正确，所以[A]项正...

1年前

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