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题库 / Prep2007E1-SC-24
Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter.
less than they did
less than it did
less than they were
lower than
lower than they were
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比较的是增长的%, 用less（更少的）而不是lower（更低的）; than + 主语 + 宾语+ 比较的时间段，本题比较对象是状语，但是此处主语不能省略，易有歧义。正确A，错选D， than in the year比较结构表达太模糊,完全可以理解为 than others expected in the year或 than price rose in the year等等，所以补足主谓可以消除歧义
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