（）组织的优点是命令统一、职责明确、结构简单。

A．矩阵结构 

B．内企业家 

C．事业部制 

D．直线制

Department of Homeland Security and CIA produced ____ joint report Monday warning that

_____ next 9/11 could in fact occur on _____ different date. [ ]

A. the; a; the

B. a; the; a

C. /; the; the

D. a; / ; the