工程项目总控的核心是（）
A.质量控制
B.费用控制
C.进度控制
D.合同控制
参考答案：D
If David his legs in the last training, he would join in the coming World Cup, which he has been longing to compete in.
A．didn’t hurt
B．hadn’t been hurt
C．wasn’t hurt
D．hadn’t hurt
营养：为了满足人体每天对______和各种______的需要，人们的营养必须______．
