2019年mba考试英语模拟题——连词838

01}The incomes of skilled workers went up .        , unskilled workers saw their earnings fall. A.Moreover B.Therefore C.Meanwhile D.Otherwise 解析：
moreover，此外；therefore，因此；meanwhile同时；otherwise否则，要不然。
本题选C。

{02}—I wonder how much you charge for your services.
—The first two are free ________ the third costs $30.
A.while  
B.until
C.when  
D.before
解析：
本题选A。