Firms that use computers have found that the number of staff __________ is neede

游客2024-10-31  5

问题 Firms that use computers have found that the number of staff __________ is needed for quality control can be substantially reduced.

选项 A、whose
B、as
C、what
D、that

答案 D

解析 语法结构。that is needed for quality control 为定语从句,修饰 staff。as 用作关系代词时先行词需有 such 或 the same 修饰。
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