Paper produced every year is ________ the world’s production of vehicles.

A．the three times weight of

B．heavier three times than

C．as three times heavy as

D．three times the weight of

某建设项目建设期3年，各年计划投资额分别为1600万元、2400万元和1900万元，年均价格上涨率为5%，则该项目建设期涨价预备费约为( )万元。

A．525.49

B．625.49

C．725.49

D．825.49