英语题目.速回答1.The ___the air is from the ground ,the ___the air is ( )A higher up ;thinner B.lower ;thinner C higher up;denser 2.What gas is give off when an object is burnt ?( )A.Carbon dioxide B. Oxygen C.Hydrogen 3.Which statement is wrong ?( )A.Plants are important to life .B .Animals and man cannot live without plants .C. Plants can make food only from air and water .
问题描述：
英语题目.速回答
1.The ___the air is from the ground ,the ___the air is ( )
A higher up ;thinner B.lower ;thinner C higher up;denser
2.What gas is give off when an object is burnt ?( )
A.Carbon dioxide B. Oxygen C.Hydrogen
3.Which statement is wrong ?( )
A.Plants are important to life .B .Animals and man cannot live without plants .
C. Plants can make food only from air and water .
答
A A C
答
1A 2 A 3C
答
1.A 海拔越高,空气越稀薄.
2.A 物品在燃烧时释放二氧化碳.
3.C 植物只能从空气和水中获取食物,是错误的,还有土壤等.
这原来不是英语题,是生物化学啊.
答
1.A 空气离地面越远越稀薄
2.A 当物体燃烧后释放的气体是二氧化碳
3.C 植物仅仅从空气和水中获取食物。是错误的