作文要求:
写一篇关于电脑和人脑差别的文章。
字数要求:
300字以内。
从句使用量不足,应增加从句和复合句的使用;文章高级词汇使用熟练,词汇表达较为丰富;采用了简单的衔接手法,行文流畅。
Iron plate pcb is used for a high-end motor, high-end product equipment and motor . It is widely used on the market currently Iron plate pcb exported to Japan, Korea, Taiwan and Canada and other countries , compared to aluminum substrate hardness Manufacturing process and the difficulty will be much larger, generally difficult to master the technology manufacturers, the cost of cost and scrap rate is relatively high.