判断出组三最准方法

简介：Under the shadow of the trees under the dome of Ronghu Lake, Cheng Keshu was sitting alone in her school uniform, with her knees crossed and her arms folded. There was a book of math problems on her knees. She lowered her head and worked on the problems. Occasionally, she looked up at the lonely man not far away. Figure, the cool wind hits the face, warm and cool but with the smell of early sunshine.