We don't have maths lesson today.
Do you have maths lesson today?
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We don't have maths lesson today.
Do you have maths lesson today?
Yes, we do.
No, we don't.
最新问答: 计算(a-3b)(a+3b)-(2ab-3b^2)^2/(-b^2) (2008•泰安)下列是关于人体的呼吸方面的论述,其中错误的是( ) 【高数】利用两个重要极限求函数极限 send相关短语? 已知x=2,y=1是方程组x+5y=m,nx-my=4的解,则m-6×(2)^n的值是(那个是n的平方,平方好像是那么写 一句英语句子的意思不明白He told of different men and of strange civiliza 已知方程“二分之一”【X-“二分之一”(K X -1)】=“三分之二”(X-K)的解为X=22,则K= 用氯化钠怎么配成0.9生理盐水 (2014•广西模拟)如图表示某生态系统中的食物关系,请据图回答. 镁、铝、铜组成的混合物10.3克,在空气中充分加热至恒重,质量变为13.5克.如果将所得固体溶解,需要消耗6mol•L- you give me a really good feel in all day long是什么意识? 将高都是1米,地面半径分别为1.5米、1米和0.5米的三个圆柱组成一个物体,这个物体的表面积是多少平方米? 在密闭容器内,使1molN2和3molH2混合发生下列反应:3H2+N2 2NH3 △H 汉代郡的长官称什么?隋唐州的长官称什么?宋代州的长官称什么?明代府的长官称什么? ()门前问大爷——卖弄学问来了 翻译三天前他离开这儿去了北京时,老师用了he has been away in beijing for three da each和every的区别(each/every)student pass the exam (each/every)s tan^2=sin^2/cos^2成立吗 please tell him the name of the book in which he can find in “天空和大海”用英语怎么说