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题库 / Prep2007E1-SC-31
According to some economists, the July decrease in unemployment so that it was the lowest in two years suggests that the gradual improvement in the job market is continuing.
so that it was the lowest in two years
so that it was the lowest two-year rate
to what would be the lowest in two years
to a two-year low level
to the lowest level in two years
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C："what" is one of those words that should be evaluated on a case-by-case basis. generally, you shouldn't use it unless there are no other options. (the good thing here, of course, is that these questions are multiple-choice -- so you'll be able to tell whether there are "other options" or not!)
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