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题库 / Prep2007E1-SC-124
Whereas the use of synthetic fertilizers has greatly expanded agricultural productivity in many parts of the world, an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers may accelerate soil structure deterioration and soil erosion.
an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers
an increase in their use can create serious environmental problems like water pollution, and if substituted for more traditional fertilizers, it
if these fertilizers are used increasingly, they can create serious environmental problems such as water pollution, and if used as substitutions for more traditional fertilizers, they
the increased usage of these fertilizers can create serious environmental problems such as water pollution, while if substituted for more traditional fertilizers, this substitution
the increased usage of these fertilizers can create serious environmental problems like water pollution, while their substitution for more traditional fertilizers
A增加造成问题，并且替代加速破坏
B it无正确的指代对象
C 肥料造成问题，并且肥料加速破坏，if used as substitutions for more traditional fertilizers, they may accelerate soil structure deterioration and soil erosion. They指代fertilizers used as substitutions这意味着肥料是替代
D 使用造成问题，当替代加速破话的时候；用量造成问题，尽管替代加速破坏。句意不合逻辑
而且if substituted for more traditional fertilizers, this substitution may accelerate soil structure deterioration and soil erosion. 是一句话, substituted的主语是this substitution, 不合逻辑
E 同D
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