--- Was it by cutting down staff ______ are not diligent eough ______she saved the firm?
--- No, it was by improving work efficiency.A.that;whenB.that;whatC.who;howD.who ;tha
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D解析 本题考查强调句型和定语从句。此处是强调句型的一般疑问句形式，by cutting down staff是被强调的部分。句意：通过减员她挽救了这家公司。