元素周期表是学习与研究化学的重要工具，1869年发表了第一份元素周期表的科学家是（　　）

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        ①我国是桂花的故乡。桂花在中国分布极广、栽培历史极长，国外栽培的桂花均由中国传入。《中国植物志》第61卷说明桂花时，引用了唐朝郭橐驼《种树书》中的记载，注明桂花原产地是在中国的西南部。
        ②桂花在中国名花的排行中名列梅、菊、兰、莲、牡丹等等之后，但它却是和人们生活贴得最近的一种植物。当我们刚懂得用味觉去认识世界，桂花蜜、桂花羹、桂花糕就到了口边。懂得听故事以后，父母会在飘散着桂香的庭院里指着明月给我们讲吴刚伐桂、桂树随创随合的神话；父母还会不失时机地给我们讲蟾宫折桂的典故：一次，晋武帝问起当时的名士、官拜雍州刺史的郄诜对自己的评价，郄诜对曰：“臣……犹桂林之一枝，昆山之片玉。”从此，人们便开始用广寒宫中一枝桂、昆仑山上一片玉来比喻特别出众的人才。科举制度形成后，“蟾宫折桂”又成了考中进士的形象说法，而桂花甚至逐渐演变成了科举前三名的代称：丹桂代表状元、金桂代表榜眼、银桂代表探花。
        ③当我们会吟咏古诗了，咏桂佳作就一首首地进入了我们的读本。宋代朱熹的“亭亭岩下桂，岁晚独芬芳。叶密千层绿，花开万点黄”，让我们从观赏角度领略了桂花的姿态与馥郁的芬芳。屈原《九歌》中的“援北斗兮酌桂浆”，让我们了解到在楚地早期文献中便已提及桂花的食用价值。欧阳修的桂花诗则更富有情趣：“有客赏芳丛，移根自幽谷。为怀山中趣，爱此岩下绿。晓露秋晖浮，清阴药栏曲。更待繁华白，邀君弄芳馥。”对友人赠他所喜爱的桂树，欧阳修不仅以诗答谢，还在诗中发出了改日共赏“芳馥”的邀请。其实，像欧阳修这样热爱桂花的古代名人实在是很多，大文学家柳宗元在居所附近一种就是十余株，大诗人白居易从杭州天竺寺得到桂苗后带至苏州城里种植……
        ④桂花还象征着友好、吉祥和光荣。据说，战国时期燕、韩两国曾为了表示亲善友好，相互馈赠桂花。在盛产桂花的少数民族地区，青年男女也常以赠送桂花来表示爱慕之情。《吕氏春秋》中赞叹道：“物之美者，招摇之桂。”意指世界上最美好的东西，是招摇山上的桂树。还有“桂冠”，本意是月桂树叶编织的帽子，后来竟成了“光荣称号”的代名词。一些研究桂花的专家据此向北京奥组委推荐：在桂花的故乡举行奥运会，何不用真正的桂枝来编织“桂冠”？

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    Everyone gathered around and Paddy read out loud, slowly, his tone growing sadder and sadder. The little headline said: BOXER RECEIVES LIFE SENTENCE.

Frank Cleary, aged 26, professional boxer, was today found guilty of the murder of Albert Cumming, aged 32, laborer, last July. The jury (陪审团) reached its decision after only ten minutes, recommending the most severe punishment the court could give out. It was, said the judge, a simple case. Cumming and Cleary had quarreled violently at the Harbour Hotel on July 23rd and the police saw Cleary kicking at the head of the unconscious Cumming. When arrested Cleary was drunk but clear-thinking…

    Cleary was sentenced to life imprisonment with hard labour. Asked if he had anything to say, Cleary answered, “Just don't tell my mother.”

     “It happened over three years ago,” Paddy said helplessly. No one answered him or moved, for no one knew what to do. “Just don't tell my mother,” said Fee numbly. “And no one did! Oh, God! My poor, poor Frank!” Paddy wiped the tears from his face and said. “Fee dear, pack your things. We'll go to see him.”

    She half-rose before sinking back, her eyes in her small white face stared as if dead. “I can't go,” she said without a hint of pain, yet making everyone feel that the pain was there. “It would kill him to see me. I know him so well— his pride, his ambition. Let him bear the shame alone, it's what he wants. We’ve got to help him keep his secret. What good will it do him to see us? ”

    Paddy was still weeping, but not for Frank, for the life which had gone from Fee’s face, for the dying in her eyes. Frank had always brought bitterness and misfortune, always stood between Fee and himself. He was the cause of her withdrawal from his heart and the hearts of his children.

    Every time it looked as if there might be happiness for Fee, Frank took it away. But Paddy's love for her was as deep and impossible to wipe out as hers was for Frank.

    So he said, “Well, Fee, we won't go. But we must make sure he is taken care of. How about if I write to Father Jones and ask him to look out for Frank?”

    The eyes didn't liven, but a faint pink stole into her cheeks. “Yes, Paddy, do that. Only make sure he knows not to tell Frank we found out. Perhaps it would ease Frank to think for certain that we don't know.”