[讨论]OG11－044

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44.   The automotive conveyor-belt system, which Henry Ford modeled after an assembly-line technique introduced by Ransom Olds, reduced from a day and a half to 93 minutes the required time of assembling a Model T.

(A)   from a day and a half to 93 minutes the required time of assembling a Model T

(B)   the time being required to assemble a Model T, from a day and a half down to 93 minutes

(C)   the time being required to assemble a Model T, a day and a half to 93 minutes

(D)  the time required to assemble a Model T from a day and a half to 93 minutes

(E)   from a day and a half to 93 minutes, the time required for the assembling of a Model T

选D？