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 teauila by pollinating agave plants.
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
GMAC出题原则是不会考你冷知识，如果考察的是国外小学生以上才需要懂的语法知识，会在未划线部分给你明确的提示的。
注意到第一个冒号在划线外吗？这就是提示。
不考虑冒号平行的问题，后面的结构也要是they pollinate....and help to produce/ producing吧？你怎么解释D中and indirectly前面的逗号？不是跟你否定B的原则相矛盾了？
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发表于 2016-2-28 00:30:35
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