请用微信扫描当前图片获取下载验证码
×
Skills building1: Recognizing what is important
You need to pay attention to what the teacher said in class, and review the knowledge based on the textbooks. I want you to do some exercises related and analyze the answers until you understand them completely. You would like to fix on the rest and have a healthy diet.
: most important :rather important :least important
Z.x.x. K