我们做作业、写作文的时候,一时大意就会在本子上留下错别字,老师们批改的时候常常头痛不已。何不发明一种错字扫描仪呢?它的外观跟普通的笔没什么两样,但是在笔尖部分有一个方形的镜面仪,由微电脑控制并连接着笔末端的智能检测系统。当老师用这支笔批改作业时,将笔顺着作业本 When we do homework and writing, we will leave a typo on the book for a moment, and teachers often have headaches when correcting. Why not invent a falsification scanner? Its appearance is no different from an ordinary pen, but there is a square mirror instrument in the pen tip part, which is controlled by the microcomputer and connected to the intelligent detection system at the end of the pen. When the teacher uses this pen to correct his homework, he will follow the workbook