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6.AB【解析】卢瑟福通过分析α粒子散射实验结果,得出原子的核式结构模型,否定了汤姆孙原子枣糕式模型,A项正确;用中子轰击铀核使其发生裂变,裂变反应会释放出巨大的核能,B项正确;一个氢原子处于第三能级,辐射出不同频率的光子的种类数最多为V=n一1=2,C项错误;汤姆孙通过电子的发现揭示了原子有一定结构,天然放射现象的发现揭示了原子核内还有复杂结构,D项错误。
读后续写(25分)》One possible version:With his eyes fixed on Peter's pocket,he wondered what Peter would do.Watching Shirley's Smile fadingaway,Peter frowned.After a while,he seemed to make up his mind.He took out all the shells from his pocket,giving them to the shopkeeper,who took them and started to count as if he had been counting the money.Thenhe looked at Peter.Peter asked him,"Is it enough now?"The shopkeeper replied,"These are more than thecost."Saying so,he kept only two shells and returned the remaining and the money.Peter put those shells backinto his pocket very happily,leaving with Shirley holding the doll tightly.Seeing Peter and his sister leaving happily,an assistant in that shop got surprised.He asked theshopkeeper,"Sir!You only charge them for 2 shells?!"The shopkeeper said with a smile,"For us these areshells,but for the boy they are treasures.His love for his sister is the most precious."Watching the lovely kidsuntil they were out of sight,he continued,"When he grows up,he will remember he purchased a doll for hissister with the shells from a shopkeeper.He will cherish love and warmth in life--cherish every little shining seashell in his heart."