--- Was it by cutting down staff _ _she saved the firm?
----- No, it was by improving work efficiency.
A. when
B. what
C. how
D. that
网友回答
A. when
B. what
C. how
(答案→)D. that
解析：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。
【考点定位】考查强调句型。