当目前条件的改变使原有的假设不再成立时,应用()方法来预测项目完成时的费用。
参考答案:实际支出和对未来剩余工作的重新估计
The computer, ______________ help we human beings have stepped into the information age, should be made full use of to promote the social development.
A.which
B.whose
C.with its
D.with whose
不属于夏季四防范畴的是()。
A、防滑
B、防冰雹
C、防雷电
D、防干旱