Some economists predict that the dollar will remain weak _______ economies abroad are expected to

grow faster than that of the United States.  [ ]

A. while

B. as

C. before

D. until

某厂每年年初提取50万元储备基金存入银行，若年利率为10%，则5年后该厂可供使用的储备基金为( )万元。

A．277.51

B．305.26

C．335.78

D．369.36