题目

有关原子结构，下列说法正确的是( ) A . 玻尔原子模型能很好地解释氢原子光谱 B . 卢瑟福核式结构模型可以很好地解释原子的稳定性 C . 玻尔提出的原子模型，否定了卢瑟福的原子核式结构学说 D . 卢瑟福的α粒子散射实验肯定了汤姆孙关于原子结构的“西瓜模型” 答案：A单词拼写（共5小题，每小题1分，分）小题1:She loves taking photos and always takes her c________ with her wherever she goes.小题2:The old man is d_________. He can hardly hear anything.小题3:— Could you l________ me your dictionary?— Sorry. I am using it at the moment.小题4:Don’t run so f________! I can’t catch up with you.小题5:Please don’t w________ about Jim. He can take good care of himself.