用 in, on, under, behind 填空。

     I have a nice and clean room. There is a small desk __1__ the room. My clock is __2__ the desk. The

soccer is __3__ the bed. My backpack is __4__ the door of the room. My pen and eraser are not __5__

the pencil-box. The pencil-box is not __6__ the backpack. It's __7__ the clock.

项目团队能力开发的途径与手段包括（）。

A．人员来源分析

B．改善环境

C．培训

D．表彰与奖励体系

E．评价