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CaCO3是不是全部电离 加入少量碳酸钙,碳酸钙的电离程度变小对么? Mg(OH)2和CaCO3可以完全电离 为何在水中无法溶解? 关于大二的校园生活的稿子 300字左右不要抄袭别人的啊 沉淀能电离吗,为什么啊? 初中怎样理解沉淀和电离硫酸钡、氯化银是沉淀物质,但它们能电离吗?如果能电离,它们在水中沉淀,怎么可能钡离子和硫酸根离子分开呢? 不溶于水的沉淀在溶液中能被电离吗? 除了用吝啬鬼来形容严监生还可以用哪些词语来形容 严监生是世界文学史4大吝啬鬼之一吗 《儒林外史》的吝啬鬼是不是严监生? yes.l'm from canada.根据答句写问句 Mike always makes his sister ______.为什么填cry,而不填cried Mike always makes his sister___.A.crying B.to crying C.cried D.cry Pual always makes his sister （）.A.crying B.to crPual always makes his sister （）.A.crying B.to cry C.cried D.cry 选哪个 不能直接用碳酸钙或碳酸钠与稀盐酸反应,为什么? 多元文化碰撞后融合的例子 咋样很简单很明了的区别,主语从句,宾语从句,同位语从句……从句呢? This song always makes me cry. he makes me not cry.与he makes me not to cry.哪个正确 碳酸钙溶不溶于水? “碳酸钙完全不溶于水”对吗?在室温（20℃）“碳酸钙完全不溶于水”这句话对吗?如果不对,怎样用实验来验证?如果不对怎么用实验来验证它？得出错误结论的原因是什么？得出错误结论的 主语从句答案1.____leaves the room last ought to turn off the light.a)Anyone b)Personc)Whoever d)Everyone2.____we'll go camping tomorrow depends on the weather.a)That b)Whetherc)If d)Where3.____is to do good in all one's life and never do anythi 我是可爱的女孩,你们谁喜欢可爱的女孩? he always makes breakfast有错吗,breakfast是不是应该改为a breakfast the naughty boy always makes his mother_______.A.angry B.angryily 中国文学中除了严监生另外三个吝啬鬼是谁 对严监生是吝啬鬼的看法come on come on 那个可爱的女孩 英语翻译 He's heavier than his brother.(变为一般疑问句,并做肯定回答） 大家都很喜欢他.英语翻译 his brother is [ ] [ ] [ ] than heA.three years olderc.three year olderD.three older yearsB.old three years his brother's handbag is heavier than his his brother's划线,对划线部分提问