1 saw a woman running toward me in the dark. Before I could recognize who she was, she had run back

in the direction         she had come.   [ ]

A．of which      

B．by which  

C．in which      

D．from which

项目管理信息系统的主要意义是( )。

A．有利于项目参与方之间的信息交流和协同工作

B．有利于数据的检索和查询

C．确保数据的准确性

D．便于数据检索和查询

E．容易形成项目管理需要的报表