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All this was used to ______ what percent...

All this was used to ______ what percentage of time people spent in an unpleasant state.

A. accumulate   B. calculate

C. accelerate   D. circulate

 

B 【解析】 试题分析:考查动词辨析。句意:所有这些都被用于计算人们不好的情绪状态所占的百分比。A积累;B计算;C加速;D(使)循环,传播,故选B。 考点:考查动词辨析  
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