国内城市间的卡车运输提供国内不同城市之间的汽车运输服务。（）
参考答案：对
The money collected should be made good use __________ the people who suffered a lot in the terrible flood in Beijing on the night of July 21, 2012, which caused great losses．
A．of helping
B．to help
C．of to help
D．to helping
20G碳钢管受热面允许最高壁温为（）。
A.450℃
B.480℃
C.500℃
