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【简答题】
Several years ago, a television reporter was talking to three of the most important people in America. One was a very rich banker, another owned one of the largest companies in the world, and the third owned many buildings in the center of New York. The reporter was talking to them about being important. “How do we know if someone is really important?” the reporter asked the banker. The banker thought for a few moments and then said,” I think anybody who is invited to the Whiter House to meet the President of the United States is really important. ” The reporter then turned to the owner of the very large company. “Do you agree with that?” she asked. The man shook his head, “No. I think the President invites a lot of people to the White House. You’d only be important if while you were visiting the President, there was a telephone call from the president of another country, and the President of the US said he was too busy to answer it. ” The reporter turned to the third man. “Do you think so?” “No, I don’t.” he said. “I don’t think that makes the visitor important. That makes the President important. ” “Then what would make the visitor important?” the reporter and the other two men asked. “Oh, I think if the visitor to the White House was talking to the President and the phone rang, and the President picked up the receiver, listened and then said, “It’s for you.” 小题1:There are _______ in this passage. A.two men and two women B.three men and one woman C.three women and one man D.four women 小题2:The banker thought _______. A.he was really important because he was a rich banker B.the visitor to the White House was really important C.the visitor who met the President of the United States D.the reporter was really important 小题3: The owner of many buildings thought _______. A.he was really important because he owned many buildings in the center of New York B.the owner of the very large company was really important C.the visitor was really important if he was talking to the President and the President received a telephone call for the visitor D.the person who worked in the White House was really important
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【单选题】某化合物在正己烷中测得λ max =305 nm,在乙醇中测得λ max =307 nm,该吸收是由______跃迁类型所引起的。
A.
n→π * ;    
B.
n→σ * ;    
C.
π→π * ;    
D.
σ→σ * 。
【单选题】某化合物在正己烷中测得λ max =305nm,在乙醇中测得λ max =307nm,请指出该吸收是由下述哪一种跃迁类型所引起的?(    )
A.
n→π *
B.
n→σ *
C.
π→π *
D.
σ→σ *
【简答题】某一化合物在己烷中λmax为305nm,在乙醇中λmax变为317nm,试推测该吸收是由哪种跃迁引起的,说明理由。
【多选题】长期不良饮食习惯和生活习惯会对人体造成危害,正确的说法是()
A.
长期高盐饮食可引起高血压
B.
长期高脂肪、高糖、高热量饮食易致肥胖
C.
长期大量饮酒,易对肝脏、胃肠等消化器官造成损害
D.
吸烟,易诱发肺癌
【简答题】某一化合物在己烷中λ max 为305nm,在乙醇中λ max 变为317nm,试推测该吸收是由哪种跃迁引起的,说明理由。
【简答题】某化合物在己烷中的 λ max =305nm ,在己醇中的 λ max =307nm 。试问该吸收是由 n→π* 还是由 π→π* 跃迁引起的?
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【单选题】饮食偏好和进餐模式在人的儿童阶段已形成,而儿童时代的食品选择和饮食习惯将会对人的一生造成重要影响。收集的证据显示,在2至11岁儿童对食物和饮料的偏好和购买”要求”,对于他们的消费习惯同样产生不小的影响。目前的食品和饮料的构成和电视上狂轰滥炸般的儿童食品广告给儿童的长期身体健康带来很大危险。 通过这段文字可看出作者的主要观点是 ( )
A.
儿童要养成良好的饮食习惯
B.
儿童时代的食品选择和饮食习惯会影响一生
C.
电视广告会影响儿童的偏好和购买”要求”
D.
垃圾食品电视广告会影响儿童健康
【单选题】初中阶段是身体生长发育的重要时期,应该养成良好的饮食习惯.有些同学只吃肉,不吃水果和蔬菜,长此以往会造成身体缺乏(  )
A.
维生素C
B.
脂肪
C.
蛋白质
D.
糖类
【多选题】不良的饮食习惯会造成( )。
A.
营养缺乏
B.
体重超标
C.
食物摄入过量
D.
死亡
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