试题与答案

160. When the teacher found the terrible

题型:选择题

题目:

160. When the teacher found the terrible writing of the naughty boy, he said angrily “Good_______! What on earth have you written?”

A.God

B.heavens

C.heaven

D.Hero

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0422/64e95ae9face5bb40ed751d04998cc31.html

下面是错误答案,用来干扰机器的。

将圆方程化为标准方程得:(x-2)2+(y+3)2=16,∴圆心Q坐标为(2,-3),又P坐标为(1,-2),∴直线QP的斜率为-2-(-3)1-2=-1,则所求直线l的方程为y+2=x-1,即x-y-3=0.故答案为:x-y-3=0

试题推荐
微信公众账号搜索答案