—Jack won the first place in the writing competition.

—_______. He had prepared for it for a long time.

A．Better late than never

B．A good beginning is half done

C．Practice makes perfect

D．Many hands make light work

采用价格指数调整法评估进口设备所适用的价格指数是（）。

A.设备进口国零售商品价格指数

B.设备出口国零售商品价格指数

C.设备出口国综合价格指数

D.设备出口国分类价格指数