二氧化硅和碳为什么不生成二氧化碳

22,050英语怎么读 在直角坐标系中,若点P(-X,2)与Q/(-3,Y)关于Y轴对称则(X+Y)的2013次方的值是多少? What's nine minus four?下一句用英文怎么回答 play to I know we feel in love 是什么意思 to The regret leaves,I love you forever clever students they are前应该填how还是what for us to play and play outside to what’s seventy minus thirty?it's forty What's eighteen minus four?的汉语意思 form submit几种类型 JMCA,submit licence to publish form是什么意思 当表单提交时,js如何获取submit的名称或值,或者如何区分开,是哪个submit的提交? Before you submit the form. （ ）Mary( )Sue knows nothing about the matter,( )they didn't go to school last FridayA.Either;or;becauseB.Both;and;asC.Not only;but;for答案给的是C,为什么不能选B呢? 关于谦卑的名言 I think you know everythink 是什么意思 I think you know only secretly是什么意思 I'll play tennis with lucy .I'll 划线 .提问 Mike ___ not play with the fans.A.did B.was C.do选哪一个~并且说明理由..没有理由就不要回答了!= family作集合名词,意家庭时,谓语动词用单数还是复数?翻译句子：布莱克一家是可爱的一家.The Blacks ____a Lovely family,填什么?还有应不应该有a? 请列举我国宋词豪放派的7个代表人物 求宋词豪放派都有哪些人?苏,辛我知道,陆游岳飞也差不多算是吧.我在哪本书上看过还有两个人,名字却忘了, more的词组,如（one more,two more day) Partly---his wife's being there,I said nothing about it when we ate together. A,because of B,for ____he came to help,I could do nothing about it. A While B Until C When D After He could only remember things for two days.对for two days提问 尼尔斯骑鹅旅行记精彩片段如题,要500字的,两篇 for two more day 这里的more是什么意思? 本文以变色龙为题,具有怎样的表达效果