【题目】The incomes of skilled workers went up. _________, unskilled workers saw their earnings fall.
A. Moreover B. Therefore
C. Meanwhile D. Otherwise
在线课程【答案】C
【解析】试题分析：句意：技术工人的收入在增长，与此同时非技术工人却看见他们的收入下降。moreover并且；therefore因此；meanwhile期间，与此同时；otherwise要不然的话。根据句意故选C。