OG13 SC #26 有点疑问求解

edisonshi

26. 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
不是说；和and不能并存的么？而且；后面不是一定要是完整句子的么？为啥选B呢？

yiqing2012

这个是比较特殊的平行：大平行中套小平行，大平行用分号隔开，小平行用逗号、and隔开

kiwifoodtown

LZ，你的这些问题前面都有人问过，建议先翻翻以前的帖子。