When I go to school, my teacher tells me to learn from a good boy, his name is Lei Feng. He likes to help people do a lot of things, he does these things from his heart, he doesn’t want to let others know what he does. Lei Feng is a great guy, we should learn from him.
最新问答: If you look in my face,i am somebody.If you look in my back, 酸和盐先反应还是盐和盐先反应有HCl和CaCl混合溶液,加入NaCO3溶液 请问NaCO3先和谁反应? 谁能告诉我发现中子的实验方程式怎么写? 原点到直线y=kx+2的距离是√2,求k的值 do you have any apple?怎么答 不断的问 用英语怎么说? 的英语怎么说 如果a>0且a的绝对值>b的绝对值 那么a-b=() 1.正数 2.负数 3.正数或负数 4.0 You have been kind to me ,and your grace has bee 描写景物的成语解释加造句 1兆帕等于多少千克 科学家为什么那么聪明? 想你的夜的英文翻译是? SO42、 S2-、OH-、Na+能共存吗?为什么? 关于实验室电解水实验的说法不正确的是( ) 负次方怎么计算.还有就是次方是分数有怎样计算,份数的次方还不是很明白,举个例子吧. 为什么能量低的电子通常在离核近的区域运动.高的在远的区域运动? 只要是你送的英语怎么说 127/10化成最简分数谢谢了, 2011年温州市初中科学学业水平测试模拟卷(四)