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郭慧艳 《中学生英语读写(高中版)》2002,(1)
One night a thief came to a house.He peeped through the window.The husband and the wife were sleeping. Then the wife woke up and heard some noise.She wakened her husband.They knew there was a thief outside. 相似文献
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抗肿瘤药物——甲砜霉素同型物的合成(Ⅴ) 总被引：2，自引：0，他引：2
选用l-β-对-甲砜基苯丝氨酸乙酯为载体与植物生长控制剂作用合成了6个新的化合物:l-α-(2,3,5-三氯苯甲酰氨基)-β-(对-甲砜基苯基)丙酸乙酯(Ⅰ),l-α(α’-萘乙酰氨基)-β-(对-甲砜基苯基)丙酸乙酯(Ⅱ),l-α-(β’-萘氧乙酰氨基∫-β-(对-甲砜基苯基)丙酸乙酯(Ⅲ),l-α-(4-氯苯氧乙酰氨基)-β-(对-甲砜基苯基)丙酸乙酯(Ⅳ),l-α-(2,4-二氯苯氧乙酰氨基)-β-(对-甲砜基苯基)丙酸乙酯(Ⅴ)和l-α-(2,4,5-三氯苯氧乙酰氨基)-β-(对-甲砜基苯基)丙酸乙酯(Ⅵ)。试验表明:化合物(浓度100μg/ml)对体外培养的人体子宫颈癌细胞(HeLa细胞)的抑制率,Ⅲ为53.9％,Ⅵ为70.5％,其余不明显。 相似文献
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郭慧艳 《中学生英语读写(高中版)》2002,(6)
Anna Louise Strong(安娜·路易斯·斯特朗)was a famous AmericanWriter.She was born in 1885.She spent her first thirty years in the west ofAmerica.There she became an editor,In 1921,she was sent to Moscow.Shemade her home there,And with her help the first Moscow Daily News was 相似文献
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