p是什么化学元素

There's a pen in my bag.根据答句写问句 led的吸顶灯实用吗?实际能用多长时间啊? led吸顶灯品牌 是什么呢 LED吸顶灯什么牌子比较好? For one single beautiful sentence这个句子的single是做什么用的啊?意思,词性都说一下,可不可以改为For one beautiful sentence？ One By One (Single) 歌词 请问:A woman's whole life,in a single day,just one day,and in that day,her whole life. Make love 这个是什么意思? He studied hard and later because a well-knoen writer,----his father expected.A that was whatB what was that c and which was D which was what will \be doing to do \be about to do \be to do的区别 what you don't realize is that being well known for something isn't always a good thing. 义勇军进行曲表达了当时中国人民的什么样的心声 because of course this is not just something that happened in Australia .这句话中的of course 怎么翻? What size bowl of noodles do you like?这个句子中noodles什么时候为复数,什么时候为单数? What size bowl of noodles do you like?的size可以省略MA 下列各组混合物中,无论两种物质以何种比例混合,只要总物资的量一定,经过完全燃烧后,产生的CO2质量不变的是（） A.乙炔和苯 B.甲醛与葡萄糖 C.乙醇和乙酸 D.丙烯和丙烷 论述冼星海的《黄河大合唱》,主要从艺术性、观赏性、背景、意义、特点 good good study ,day day up 英语动词不定式问题：I am happy to see you 中 to see 这个动词不定式做什么成分（状语?补足语?...主语+be动词+adj.+to do 中动词不定式做什么成分? 下列各组物质中,不论二者以什么比例混合,只要总质量一定,则完全燃烧时消耗的氧气的质量不变的是ACH4 C2H6 BC2H6 C3H6 CC2H4 C3H6 DC2H4 C3H4 （要过程） How___I am to see you again!A.happiness B.unhappily C.happily D.happy 1、Lana said to us,I’m happy to see you again.直接引语变间接引语2、He paid fifty yuan for his trousers.改为同义句.3、My cousin is as old as me.改为同义句.4、The old man is very tired.He can't walk any further.改为同义句 某烃A的相对分子质量为84,下列物质与A以任意比混合,若总物质的量一定,燃烧消耗氧气不相等的是A C7H12O2 B C6H14 C C6H14O D C7H14O3求详解 等物质的量的A、B两种烃完全燃烧时消耗等物质的量的氧气,则A和B的相对分子质量的差值不可能为A.0 B.1 C.8 D.12 goood good study day day up什么意思?木这是撒意思杀? Good good study,day day up 用【r,l,a,l,d,o】组成一个单词= =r,l,a,l,d,o突然想不起来了=3= 原子晶体与分子晶体各自的特征及区别刚接触化学,请讲得尽量通俗一些,实在通俗不了希望能多举些例子.（重点是石墨和金刚石）,并从这个角度讲一下单原子分子与直接构成物质的原子有何 sp开头的英文单词一定要是sp开头的,而且要是小学至初中的 l a r o p b e a r 能组成什么单词 带sp的英语单词 good good study ,day day up!什么意思