Firms that use computers have found that the number of staff ______ is needed for quality control can be substantially reduced.[A] whose [B] as [C] what [D] that选哪个?为什么?请翻译整句
问题描述：
Firms that use computers have found that the number of staff ______ is needed for quality control can be substantially reduced.
[A] whose [B] as [C] what [D] that
选哪个?为什么?请翻译整句
答
我觉得是D 如果是what的话 就是说代的是number 可是我觉得如果代的是number完全可以不用说what 直接加后面的就行了
所以我觉得是D 指的是需要“Quallity Control” 的staff
翻译比较困难因为不太了解quality control 应该怎么翻译 ？
大概就是
用电脑的公司发现需要质量控制的员工的数量可以大幅度的减少。
发表一下自己意见 只供参考
答
选C.
What 在此处有双重意义=the thing that 既做主语又做引导词。
Firms that use computers have found that the number of staff what is needed for quality control can be substantially reduced.
运用电脑的公司发现，从事质检方面的员工的数量实质上可以裁减。
答
选d,that引导定语从句修饰staff
大概是“使用电脑的公司已经发现高位控制的配备职员数量实质上可以减少”