题目

I have a close friend who has a good family tradition, that is, each year after Thanksgiving dinner, all of the people sit around in the living room and each person takes a few minutes and gives thanks for what really matters and what has added value to their life over the last year. This is something I valued and followed. I have thought about a lot in the last year, and I finally came up with two things. The first one is the healthiness of my daughter. She’s as healthy as she can be, and her weight and height are in good condition and she has no illnesses or genetic diseases. I am so thank若全集I={（x，y）|x，y∈R}，集合M={（x，y）|=1}，N={（x，y）|y≠x+1}，则（CIM）∩（CIN）=（    ）。