焦炉机械主要包括（），用于出焦装煤。
A．炉门起落机械小吊车、高压水泵
B．放焦刮板机、交换机、单斗机
C．推焦车、装煤车、拦焦车、熄焦车
参考答案：C
—Visitors need to know all the travel routes to Paris, ______?
—Sure. But The trip has not arranged.
A．do they
B．need they
C．don't they
D．needn't they
Though Sundays are ______ as a day for rest, we must make good use of them.[ ]
A. set out
B. set down
C. set aside
D. set off
