第1个回答 推荐于2017-08-30
Why I love China
China is a beautiful country. It is also an ancient country with long history. I was born in this beautiful and big country. The development of this country makes me live a happy life today. Now our country is becoming more and more beautiful. The road is wide. The house we live in is large and bright. people's loves are happier and happier. I love our country .I love China.本回答被网友采纳
第2个回答 2017-08-30
一氧化碳在空气中混合爆炸极限为12.5%~74%瓦斯实际上是一个日制汉语,气体的统称一般认为是毒气或易燃易爆气体,不只是一氧化碳,范围很广