大全830
33. 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. B
(B) weather conditions that cannot be foreseen, and pilot errors often cause much larger deposits of spray than
1(D) weather conditions that are not foreseeable, and pilot errors often cause much larger deposits of spray than
that cannot be foreseen和that are not foreseeable如何区别？
