．在体育比赛中使用兴奋剂是一种不符合奥林匹克精神的行为，某种兴奋剂的结构简式如右图所示，有关该物质的说法中正确的是
A．分子内所有原子可能在同一平面上
B．该物质可发生取代、加成、消去、氧化、加聚等有机反应类型
C．1mol该物质与足量H2反应后的产物不能与NaOH溶液反应
D．若能使酸性KMnO4溶液的紫色褪去，则可证明该物质分子中是否含有碳碳双键
答案：C
A、甲基为四面体结构，不可能共面；
B、该物质不能发生消去反应；
C、与足量的氢气反应，羟基为醇羟基；故不能与NaOH反应；
D、酚羟基和苯环上甲基也能被酸性高锰酸钾反应
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| I was very fond of hunting when I was a young man. In the autumn of 1915, I was 1 in the northwest of India. One evening, after hunting in the forest all 2 , I was returning alone to the place where I had 3 up my tent. I was tired 4 hungry. It was getting 5 and darker, and I was walking slowly 6 a narrow path. On my right was a wide river; on my left, a 7 , dark forest. All of a 8 , I saw two green eyes looking at me from among the trees. I knew it 9 be a man-eating tiger. The tiger was getting ready to 10 on me. My heart 11 . What could I do? Should I jump 12 the river and hope to save my life 13 swimming? I looked to the 14 . In the river there was a 15 crocodile waiting to welcome me with its mouth 16 open. I was so 17 that I shut my eyes. And I thought it would be the end of my 18 . I heard branches moving 19 the tiger roared (咆哮) and jumped. 20 then I opened my eyes. What do you think had happened? The tiger had jumped right over me and now in the jaws (嘴) of the crocodile. | ||||
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