现代汉语的字音、字形、字义

磷酰氯电子结构式为什么OPCl3氧与磷连是双键而不是单键呢?这个有什么规律可以记吗？只是磷会出现这个情况，还是有很多的都有可能出现这个情况啊。 金德PPR水管能不能与其他PB水管热融接头 The store sells many nice clothes 对其中的 many nice clothes 提问 硫的含氧酸 结构式为什么浓硫酸的氧化性很大? The store sells many nice clothes.（对 many nice clothes提问）. 聚磷氮烯结构式怎么写呢? 英语翻译i am so hood 求翻译 具体点 别跟我说 “我很罩”之类的 我要能看懂的常意 That store sells many things.（对many things提问）_____ _____the store sell. 磷的所有含氧酸分子式?RT以及他们的化合价和酸性强弱的比较. The General Store sells clothing and many other things ( )fooda.in addition b.expect for c.apart from为什么选c, 请问高中所有无机含氧酸的结构式是什么 铝型材的大阳极氧化,和小阳极氧化问题对铝型材工艺比较陌生我们在发订单时对方告诉我：大阳极氧化就是整根型材氧化,小阳极氧化是单个零件氧化,但报价下来,大氧化只要18元,而小氧化要 汉能玻璃粉的主要用途是什么? you can day the rainy to point连词成句 point you to the can boys noes 连词成句 needs to he teach you him to sing连词needs to he teach you him to sing连词成句 which kind of,which kinds of,what kind of,what kinds of的区别与分别用法如题,还有,到底有没有后面的s啊. the kind of, a kind of, kind of, kinds of 的区别我才疏学浅,请赐教 和any kind of books还是any kind of book?any kind of 后面应加名次单数 还是复数? 硫的含氧酸有几种,分别叫什么酸, 磷元素最高价含氧酸的化学式 过磷钙酸的化学式是什么 求‘含氧酸’的化学式麻烦帮我查一下 阳极氧化铝材质会被汗液 He _______buy a bike A needs B does't need C needn't D need to -----he ---it?a does;need know b does;need to know c needs ;know d need; to know ____David _____anything to drink?A Need;/ B Needs;/ C Does;need D Do;need应该选哪一个?我觉得A和C都对啊. 石英研磨後就是玻璃粉吗? He had many___books,They are___interesting.A.kinds of,kinds of B.kinds of,kind ofC.kind of,kinds of D.kind of,kind of there are many kinds of books in his study.（对划线部分提问：划线部分为many kinds of books)----what ___in his study?空格处是is,可为什么不用are? many kinds of There are many（）books in the shop.A.kinds of B.kinds C.kind of