焦炉煤气中主要的可燃性气体是()。 A.甲烷 B.二氧化碳 C.氢气 D.乙烷 发布时间:2018-02-19 08:59 │ 来源:www.tikuol.com 题型:单项选择题 问题: 焦炉煤气中主要的可燃性气体是()。A.甲烷B.二氧化碳C.氢气D.乙烷
题型:单项选择题 The global financial crisis(金融危机) has made many people ______ their money.A.to care forB.took care ofC.be careful withD.to be cared about 查看答案