The 15:30 train to Sheffield has been called off _______ situations beyond our control.

A．in terms of

B．due to

C．according to

D．in spite of

计算土压（泥水压）控制值的上限值计算式为（）。

A．p_max＝地下水压+主动土压+预备压

B．p_max＝地下水压+静止土压+预备压

C．p_max＝地下水压+松弛土压+预备压

D．p_max＝地下水压+静止土压-预备压