精选优质文档-倾情为你奉上全新版大学英语（第二版）综合教程2习题答案Unit 11. Vocabulary1) insert2) on occasion3) investigate4) In retrospect5) initial6) phenomena7) attached8) make up for9) is awaiting10) not in the least11) promote12) emerged2. Rewrite each sentence1) There is a striking contrast between the standard of living in the north of the country and the south. 2) Natural fiber is said to be superior to synthetic fiber.3) The citys importance as a financial center has evolv
