i am really sorry for my theft.once i stolen the first thing,i felt very guilty.but i was quite poor,i was hungry .so i did the second time.then i became more and more skillful and ease.it bcame more ...
最新问答: 真核生物如何在复制时保持DNA长度 已知关于x的方程9^x-4×3^x-a=0有实数根,求a的取值范围 三角形平分线尺规画法如题 谢谢了 沸腾前,沸腾时的气泡变化为何不同 如图,已知平行四边形ABCD的周长是28,对角线AC和BD交于点O,三角形OAB的周长比三角形OBC的周长多4,则边A 近似数3.14×10 5 精确到______位,有______个有效数字. 读了爱莲说后,对“近朱者赤,近墨者黑”的认识? characters .stories .remember急啊. 已知命题p:∃x0∈R,ex0≤0,q:∀x∈R,2x>x2,下列命题中,真命题是( ) 竹子放在水中煮颜色是否会有变化? 春节走亲戚英语作文 他们很擅长球类运动 2种翻译 X^4-4X^2+1因式分解 According to a survey conducted by a local newspaper in Beij how a beautiful day is!哪里错了? 英语九年级U15 help1.----I usually go home by ship ----why not ___ 均匀的蜡烛长20厘米.密度为0.8*10^3千克每立方米,下面掉着一个小石块,竖直立于水面,上端露出水面1厘米,然后点燃 1,4,12,40.的通项公式 在二重积分中区域有2个圆相交的极坐标求法如何求角 在什么条件下,a分之b是正数,是负数,是零,没有意义?