The ines of skilled workers went up. , unskilled workers saw their earnings fall.
A. Meanwhile
B. Moreover
C. Therefore
D. Otherwise
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(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、