Yu Ziping's fourth edition book
Seek the answer of the fifth edition color blindness detection chart of Ziping! ? A non-literal answer! What we want is not a written answer, but an answer that outlines the pattern. I'm color blind. When I first checked, some pictures and figures were simply invisible. Even if I saw the outline, I couldn't tell what it was. But after reading the answer, I can answer it correctly according to the outline and memory when I look it up later (for example, the design of the teapot, when I first looked it up, I could only see the outline, but I couldn't imagine what it was. After reading the answer, I knew it was a teapot. Looking back, you will know that this is a teapot. )? So here, sincerely seek the answer,