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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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表示数量的更高/更低用higher/lower，只能做形容词。跟在动词的后面表示动作的多少用less/more
The costs rose 2.8 percent this year，xx than last year.
这里的中心词是谓语动词rose，rose less/more，不是2.8%这个数字在比较。
如果要比较数量，可以说The costs rose 2.8 percent this year，which was lower than last year.或a number lower than last year
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