刘振民F-2

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F-2

The speculative fever of the Roaring Twenties infected (rich and poor alike; vast quantities of people were dangerously overextended), credit was absurdly easy to obtain, and most brokerage houses required only ten percent cash for stocks bouth on margin.

A) rich and poor alike; vast quantities of people were dangerously overextended

刘振民F-2里面说，用quantities来修饰可数名词people，这在语法中是不能接受的，所以A错。

请教下这个说法对吗？我在字典上查的都是说quantities of 和 a quantity of 后面加可数和不可数均可以呀？

也就是说vast quantities of people应该是对的呀？是LZM搞错了吗？NN请指点、确认，谢谢

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