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那个学生不知道他的票在哪?The student doesn't know where ___ ___ ___. is know where do office you post the连词成句 Do you know where the post office is? 改错Our teacher came into the classroom holds a book in his hand.You can do more exercises to keep healthy.My schoolbag is mroe beautiful than Amy.How about repeapting the three poems again?The man jumped into the river when he heard a boy called f 已知圆x^2-2x+y^2=0 c为圆上一点,圆心为a p在ac连线上,且ap*ac=1 求p点轨迹方程 高中解析几何求解 高分 在线等在平面直角坐标系中,已知点A(1/2,0),点B在l:x=—1/2上运动,过B与l垂直的直线和AB的中垂线相交于点M,M运动的轨迹为E,设点P是E上的动点,点R、N在y轴上,园C:{x=1+cosa, 求过点A(4,2)B(-1,3),且在坐标轴上4个截距和为2的圆的方程 .(14分)椭圆x^2/a^2+y^2/b^2=1与直线x+y-i=0 相交于P Q两点,且OP垂直于OQ(O为原点).(1)求证1/a^2+1/b^2 等于定值;(2)当椭圆离心率e属于[根号3/3(三分之根号三),根号2/2(二分之根号二)(根号只管分子)]时, 已知F1,F2分别是椭圆C:x^2/a^2+y^2/b^2=1(a>b>0)的左右焦点,直线x=a^2/c[注:c=√(a2-b2)]上的点P(2,√3),满足线段PF1的中垂线过点F2,直线l:y=kx+m为动直线,且直线l与椭圆C交与不同的两点A,B.1求椭圆C方程2 They were interesting in everything _______ you told them.A.which B.in which C.about which D.that 选择并说明理由 设[x]表示不超过x 的整数中最大的整数.如[1.97]=1,[-1.35]= -2,根据规律计算:[-6.2]-[一又二分之一] 设[x]表示不超过x 的整数中最大的整数.如[1.97]=1,[-1.35]= -2,根据规律计算:(1)[2.9]-[-3] 设[x]表示不超过数x的整数中最大的整数,例如:[2.53]=2,[-1.3]=-2,根据此规定做下列运算:1 [5.3]+[3] 2 [-4.3]+[2/3] 3 [5/3]-[-1又2/1] 4 [0]+[-2.7] 曲线C与抛物线y^=1/2 x 关于直线y=x对称,求曲线C的方程?抛物线y^=2x上各点与焦点连线中点的轨迹方程? He doesn't know where he can do.(同义句)He doesn't know where _____ _____ _____where he can go。 已知点H(-3,0),点P在y轴上,点Q在x轴的正半轴上,点M在直线PQ上,且满足向量HP乘以向量PM等于0,向量PM等于-3/2向量MQ.(1)当点P在y轴上移动时,求点M的轨迹C的方程.(2)过T(-1,0)作直线与轨迹C交于A 改错:He doesn's know where can he go. 如图所示 希望用弦长定理、点到直线距离求解 其它方法的绕行吧 希望用弦长定理、点到直线距离求解 其它方法的绕行吧 希望用弦长定理、点到直线距离求解 其它方法的绕行吧 希望用弦长定理 1:Were you interested in them?(变陈述句) 2:I went to a moved yesterday.(变成否定句) you,in,them,interested,were连词组句 设y=[x/(12+1/2)]·[-(12+1/2)/x]其中[x]为不超过x的最大整数,若0 设[x]表示不超过x的整数中最大的整数,如[1.97]=1,[-1.35]=-2,根据此规律计算:(1)[2.9]-[-2.9];(2)[-6.2]-[1又2/1]. 设【x】表示不超过x的整数中最大的整数,如:【1.99】=1,【-1.02】=-2根据此规律计设【x】表示不超过x的整数中最大的整数,如:【1.99】=1,【-1.02】=-2根据此规律计算 (1)【-0.6】= (2)【2】= ( 设【X】表示不超过X的整数,如【1.99】=1,【-1.02】=-1,根据此规律计算(是什么意思) he doesn't knowA.what does the boy like B.what the boy does like C.what the boy like D.what the boy likes Where are you going this afternoon 答句 他不知道乘哪辆车英语 He doesn”t know ( ) ( ) ( ) He doesn't know ___(该做什么). 判断对错.there is a bike in the picture All the students were very interested in the film.All the students ___ great ___in the film.