A:素有“冰雪高原”之称
B:植被有地衣、苔藓和北极柳
C:是跨纬度最广的大陆
D:因资源贫乏,被称为“白色沙漠”
分解因式:x(x﹣2)(x+3)(x+1)+8=____ .
Yesterday evening,I along the street when I suddenly met my math teacher.