请教大牛本月JJ79题！！！

79.There is one more I remember, but couldn't draw - 4 lines interect each other forming a "#" not necessarily //.  4 corner w, x, y and z.  ask x+z=? 

1) w=95 2)z=125 Answer is D for sure

解：待补充

类似于GWD1-22 求x+y

四边形四个内角的和等于360度, 四个外角的和也等于360度, 题中x, y, z, w分别是四个外角, 所以已知z和w就可以求出x+y

即 x+y=360-z-w

这题答案到底是啥？？？

这题答案到底是啥？？？