主干知识 自主学习核心考点 全面排查课时作业 提能首页上页下页尾页随堂巩固 素养提升核心考点 全面排查主干知识 自主学习目 录ONTENTSC随堂巩固 素养提升4 4课时作业 提能主干知识 自主学习核心考点 全面排查课时作业 提能首页上页下页尾页随堂巩固 素养提升Dear Tom，Recently a competition of technological innovation has been held in our city.Every time I notice my teachers wipe their handwriting away from the blackboard and make their hands dusty,I think that the conditions permitting,Ill offer them some help.So I designed a magic pen for them.主干知识 自主学习核心考点 全面排查课时作业 提能首页上页下页尾页随堂巩固 素养提升The appearance of my pen is differ
