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The spraying of pesticides can be carefully planned, but accidents, weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated.
答案:B
问题:请问为什么不能选D 查看答疑
问题:请问王文静老师,这个题,我首先根据they 无指代排除了ACE,但是BD我读起来是完全没有差别的。两者相比,D有哪些不足?谢谢老师 查看答疑

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