在脱硫工序天然气中加入合成气使其中的氢气与（）发生反应。
A.硫醇
B.乙烯
C.氧硫化碳与二硫化碳
D.B与C的综合
参考答案：D
With drink and food ____, the prisoner had to walk out of the cave where he was hiding.
A．running out
B．run out
C．use up
D．using up
