In the rush hour, hiring ________ taxi for you to do what you are eager to do may be ________ better

choice in our city.    [ ]

A. the; the        

B. a; the            

C. a; a              

D. /; a

负载接到电压u为220V单相交流电路中，电路电流I为5A，功率因数cosΦ为0.8，求该电路视在功率S和有功功率P值符合下列选项（）

A.2200VA，1760W

B.2200VA，1320W

C.1100VA，660W

D.1100VA，880W