I don't know whether the rice fans have read the first Beijing primary school sex education textbook "The Steps of Talent" ? The naked passionate pictures of men and women, and the detailed illustration process make us adults feel shy. But there are always people who can surpass you in every aspect of life. Unexpectedly, a kindergarten in Zhengzhou has used "real" dolls to teach the children. These dolls with exposed private parts make us feel again that is the tide of sexual liberation in China coming too strong?