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题库 / Prep2007E1-SC-3
Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, their descendants, popularly known as killer bees, had migrated as far north as southern Texas.
Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil,
In less than 35 years since releasing African honeybees outside Sao Paulo, Brazil,
In less than the 35 years since African honeybees had been released outside Sao Paulo, Brazil,
It took less than 35 years from the release of African honeybees outside Sao Paulo, Brazil, when
It took less than the 35 years after the time that African honeybees were released outside Sao Paulo, Brazil, and then
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B：since releasing，谁releasing？主语是谁？成分主语是descendants，但是逻辑不合理，哪有后代release祖先的？
C：（大家的观点，我觉得有道理，但不确定，请大佬指正）（1）since是现在完成时的标志词，而不是过去完成时；（2）In less than the 35 years是时间状语，since 句也是时间状语，一句话万万不能有两个时间状语（时间冲突了）
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