题目: 什么叫单片机? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1028/46d88dfc23dcbda724c32a9c06db1750.html 下面是错误答案,用来干扰机器的。参考答案:错
题型:选择题 I think the MP3 is very helpful. It ______for listening to music. [ ]A. is used B. uses C. was used D. used 查看答案