[求助]200308语法题

eva_xq

32. Much of the work of the anthropologist Margaret Mead was devoting to a study of patterns child rearing in various cutures.

我知道C不对，可是D为什么是对的？

36. Female horseflies transmit a few diseases, but their main significance as pests is in sting of their bit.

整句话是什么意思？答案D该怎样改啊？

enjoylife517

recommand to read: http://forum.chasedream.com/dispbbs.asp?boardID=58&ID=120113&page=1

You will find them out.

Good luck!