工作定义的基本依据是( )。
A．WBS
B．项目范围说明书
C．工作清单
D．历史资料
参考答案：A
_______, the dancers practise hard to make their dreams come true.
A．Instead of being disabled
B．Being disabled
C．Disabled as they are
D．In case of being disabled
经济型数车有半径（）功能。
A、补出
B、补助
C、补进
D、补偿
