Where did you pick up    news that the pop star, whose new song was quite a hit last year, would give    concert?

A．tbe;the

B．不填；the

C．the;a

D．不填；a

某选矿厂按药液比重为1.0t/m³近似计算，一年所添加的药液总体积为600.00m³，按测得的药液比重为1.05t/m3³计算，一年所添加的药液总体积为571.400m³，求一年多耗黄药量为多少？药液浓度为10.0％。