题目

下列变化的实质相似的是(   ) ①浓硫酸能在白纸上写字,氢氟酸能在玻璃上刻字②二氧化硫和氯气均能使品红溶液褪色③二氧化硫能使高锰酸钾溶液、溴水褪色④氨气和碘化氢气体均不能用浓硫酸干燥⑤常温下浓硫酸可用铁容器存放、加热条件下浓硫酸能与木炭反应⑥浓硫酸和浓盐酸在空气中敞口放置时浓度均减小. A . 只有②③④ B . 只有③⑤ C . 只有①④⑥ D . 全部It is June 15, and in two days I will be turning thirty years old. I am afraid that my best years will be behind me.I usually go to the sports club to exercise before going to work. Every morning I see my friend Nicholas at the sports club. He is seventy-nine years old. I asked him, “What was the best time of your life?”“When I was a child in Australia and was taken care of by my parents, that was the best time of my life. When I was going to school and learning the things, that was the best time of my life. When I got my first job and got paid for my work, that was the best time of my life. When I was a young father, watching my children grow up, that was the best time of my life. And now, Jack, I am seventy-nine years old. I have my health and feel good, this is the best time of my life.”Title The Best小题1:________ of My LifeWhenJune 15where In the sports clubWho I am小题2:_________ years old Nicholas, an old man who is 79 years oldNicholas’opinion As a child: being taken care of by his 小题3:__________At school: learning the thingsAfter leaving school: getting first job and paid for the workAs a young小题4:________: watching children grow upAs an old man: being 小题5:__________ and feel good
化学 试题推荐