乙炔是一种重要的有机化工原料，以乙炔为原料在不同的反应条件下可以转化成以下化合物。
完成下列各题
（1）正四面体烷的分子式为________，其二氯取代产物有________种。
（2）关于乙烯基乙炔分子的说法错误的是________。
a．能使酸性KMnO4溶液褪色
b．1摩尔乙烯基乙炔能与3摩尔Br2发生加成反应
c．乙烯基乙炔分子内含有两种官能团
d．等质量的乙炔与乙烯基乙炔完全燃烧时的耗氧量不相同
（3）写出与环辛四烯互为同分异构体且属于芳香烃的分子的结构简式
___________________________。
（4）写出与苯互为同系物且一氯代物只有两种的物质的结构简式(举两例)________、________。
（1）C4H4；1
（2）d
（3）
（4）
；
Linda British was an outstanding teacher who felt that if she had the time, she would like to create great art and poetry. When she was 28, however, she began to get severe 36 . Her doctors discovered that she had an enormous brain tumor (瘤). They told her that her 37 of surviving an operation were about 2 percent. Therefore, 38 operate immediately, they chose to wait for six months. The night before the operation after six months, she 39 to give herself away. She made a 40 , in which she would donate all of her body parts to those who needed them in 41 of her death. 42 , Linda died after the operation. Afterwards, her eyes went to an eye 43 in Bethesda, Maryland, and from there to a recipient in South Carolina. A young man, aged 28, went from darkness to 44 . That young man was so 45 that he wrote to the eye bank thanking them for existing. 46 , he said he wanted to thank the parents of the donator. They must 47 be magnificent people to have a child who would 48 her eyes. He was given the 49 of the British family on Staten Island. He arrived unannounced and rang the doorbell. After hearing his introduction, Mrs. British 50 and hugged him. She said, “Young man, if you’ve got 51 to go, my husband and I would love you to spend your weekend with us.” He stayed, and 52 he was looking around Linda’s room, he saw that she’d read Hegel. He’d read Hegel in Braille as well. The next morning Mrs. British was looking at him and said, “You know, I’m sure I’ve seen you somewhere before.” All of a sudden she 53 . She ran upstairs and pulled out the last picture Linda had drawn. It was a portrait of her ideal man. The picture was almost the same as this young man who had received Linda’s eyes. Then her mother read the 54 poem Linda had written on her deathbed. It 55 : Two hearts passing in the night Falling in love Never able to gain each other’s sight.
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