1. Although some officials noted that using machines for farming in China costs more than traditional hand cultivation, the mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half.
(A) mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half
(B) mechanization of farming in the village of Long Bow doubled the corn yield while cutting costs to half those of the previous year
(C) mechanization of farming in the village of Long Bow doubled the corn yield as cost were cut to half of the previous year’s
(D) farming mechanization in the village of Long Bow doubled the corn yield as it cut in half the previous year’s costs（B）
(E) farming mechanization in the village of Long Bow doubled the corn yield while costs were cut to half that of the previous year
我对B有个疑问，句子后部分的主语明显是mechanization of farming， 怎么可以在while引导的clause中有cutting。。。这不是变成mechanization of farming。。。。cutting。。。？所以我觉得还是A好，虽然是被动句，各位请给点意见
les is right. it is the machanism that cut the cost.
dont think too much pal
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