单选题:在平面直角坐标系中,点P(-4,5)关于原点对称的点的坐标为( ). 题目分类:小学数学 题目类型:单选题 号外号外:注册会员即送体验阅读点! 题目内容: 在平面直角坐标系中,点P(-4,5)关于原点对称的点的坐标为( ). A.(4,5) B.(4,-5) C.(-4,-5) D.(5,-4) 参考答案: 答案解析:
The best time of the day to read stories to a child is The best time of the day to read stories to a child isA.when the child is still 分类:小学数学 题型:单选题 查看答案
Why did Jan Jennings ask the lawyer to repeat what he said? Why did Jan Jennings ask the lawyer to repeat what he said?A.She never expected 分类:小学数学 题型:单选题 查看答案
正四棱锥P-ABCD的所有棱长都相等,E为PC的中点,那么异面直线BE与PA所成角的余弦值等于__________. 正四棱锥P-ABCD的所有棱长都相等,E为PC的中点,那么异面直线BE与PA所成角的余弦值等于__________. 分类:小学数学 题型:单选题 查看答案