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- 1..The teacher said,“The sun rises in the east an d goes down in the west.” The teacher said that the sun ______ in the e
- 2一个圆锥和一个圆柱的体积相等,体积之比为3:2,圆锥的高是8厘米,圆柱的高是多少
- 3计算:3xy-4xy-(-2xy)
- 4英语 形容词 搭配
- 5已知直线l1:4x-3y+6=0和直线l2:x=-1,抛物线y2=4x上一动点P到直线l1和直线l2的距离之和的最小值是( ) A.2 B.3 C.115 D.3716
- 6(-4X²Y)(-X²Y²)÷1\2XY 的三次方
- 7某磁铁矿石样品中含Fe3O4,其他不含铁的杂志24%.计算这种矿石中铁的质量分数.
- 8形容经历过长期艰难困苦生活的磨炼.有哪些成语
- 9九年级上化学知识点
- 10she brought me a nice sweater yesterday,now the sweater me(belong)