题目

Daredevil climber Alain Robert, known as the French Spiderman, stood strong winds and rain to climb the world’s tallest skyscraper, Taiper 101, Saturday.Robert, dressed in a red rain jacket, tights and climbing shoes, climbed up ropes hung down the side of the 101-storey, 1,667-foot office tower, reaching the top in around four hours. “It was a very big moment and I felt a lot of satisfaction though I was already so tired and nearly all of my muscles were painful. I felt completely eased,” said Robert after taking the ride down in one of the tower’s lifts, the world’s fastest.Several下列关于氧气的说法正确的是（   ）A．能供给呼吸B．化学性质比较稳定C．具有可燃性D．是空气中含量最多的物质