-
x^4-2x^3-x^2+2x+1=0因式分解给一个过程.答案是完全平方数.要过程.
-
【第一次做饭的英语作文200字左右】
-
下列化合物酸性最强的是();酸性最弱的是().A:C6H5OHB:CH3COOHC:F3CCOOHD:ClCH2COOH
-
在括号里填表示颜色的词:桃()柳()
-
【为什么小肠表面的皱襞增大小肠表面积?】
-
1光年约等于多少千米
-
【Itkeepsyourinsidesfromfallingout.Ithelpsyouwarmupwhenyouarecoldanditcancoolyouoffwhenyouarehot.Itletsyoufeelthingsbytouch.Whatisthis?Yourskin(皮肤)ofcourse!Whatdoesyouskinaskforreturnfora】
-
选词填空enjoy,live,quiet,tired,small,supper,acrossfrom,interesting,off,takeawalkPineStreetisagoodplaceto______in.It'savery_____street.It's______thebusyCenterStreet.Ifyouare______afterwork,youcan______thecity'squietnesshere