The incomes of skilled workers went up. unskilled workers saw their earnings fall.A. Mea

问题补充：

The incomes of skilled workers went up. , unskilled workers saw their earnings fall.

A. Meanwhile

B. Moreover

C. Therefore

D. Otherwise

答案：

(答案→)A. Meanwhile

B. Moreover

C. Therefore

D. Otherwise

解析：副词辨析。A与此同时；B而且；C因此；D否则，要不然；句意：技术熟练的工人的工资上涨了，与此同时，技术不熟练的工人的工资却下降了。故A正确、