This book tells _______ life story of John Smith, who left _______ school and worked for a newspaper at the age of 16.

A．the; the

B．a; the

C．the; /

D．a; /

以下（）不属于可以代维的工作内容。

A.问题整改

B.业主关系维系

C.工程建设

D.设备、设施周期监测