---When is your father going to Hong Kong?

---- He is going there          the morning of November 10th.[ ]

A. on

B. at

C. in

D. to

货物列车每百吨列车重量的高摩合成闸瓦换算闸瓦压力不得低于（）kN。

A、160

B、180

C、200

D、280