My father told me last night ______ we're going to the Food Festival this weekend.

My brother and I felt very excited. [ ]

A. whether

B. where

C. what

D. that

使用车辆紧急制动阀时，在长大下坡道上，必须先看压力表，如压力表指针已由定压下降（）时，不得再行使用紧急制动阀，遇折角塞门关闭时除外。

A.50kPa

B.100kPa

C.150kPa

D.200kPa