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标题: prep－SC求问 [打印本页]

作者: pansypansy510 时间: 2007-8-18 22:51
标题: prep－SC求问

1、 Some patients who do not respond to therapies for depressing may simply have received inadequate treatment, having, for example, been prescribed a drug at a dosage too low to be effective or having been taken off a drug too soon.

A right answer

E for example, when they have a drug description with a dosage too low to be effective, or been

根据以前的语法知识，having可以引导伴随状语吗，平时作GMAT，一看到having，being就立刻排除的。

作者: niswzzhn 时间: 2007-8-19 00:27
不是NN,新东方老师说having done与having been done不能做定语从句，being一般都是错的。

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