New equipment and other improvements reduced the amount of time-from eleven hours in 1982 to six in 1988-needed by workers so that they could produce a ton of steel.
193. (27023-!-item-!-188;#058&002210) A D New equipment and other improvements reduced the amount of time—from eleven hours in 1982 to six in 1988—needed by workers so that they could produce a ton of steel. A. needed by workers so that they could produce B. needed when workers are producing C. workers need in producing D. workers needed to produce E. workers need for their producing of
A其实比较啰嗦,但是D为什么对? Reduced the amount of time workers needed。。。。workers needed来作定语不是有点怪么?