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Tropical bats play important roles in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; pollinating banana, breadfruit, and mango trees; and indirectly help produce tequila by pollinating agave plants.
A
pollinating banana, breadfruit, and mango trees; and indirectly help produce
B
pollinating banana, breadfruit, and mango trees; and indirectly helping to produce
C
pollinating banana, breadfruit, and mango trees; and they indirectly help to produce
D
they pollinate banana, breadfruit, and mango trees; and indirectly help producing
E
they pollinate banana, breadfruit, and mango trees; indirectly helping the producing of
【申友解析】
正确答案：B
主语是bats，谓语是play。逗号后aiding是状语。
原文有平行，aiding…; pollinating…；and helping….
ACD没有达到这个结构的平行，排除。
此外，C选项第二个分号就变成了连接两个句子，后面的句子是they help……原文的语义已经改变。
D选项把pollination之后的语义从状语变成了有主语they的句子。结构的改变引起了语义的改变。
E综合了C和D的错误。
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