人教版九年级上册英语Unit 6学习评价长江作业本答案
时间: 10-21
栏目:人教版九年级上册英语长江作业本答案
1Unit 6学习评价第Ⅰ题答案
2Unit 6学习评价第Ⅱ题答案
3Unit 6学习评价第Ⅲ题答案
4Unit 6学习评价第Ⅳ题答案
5Unit 6学习评价第Ⅴ题答案
6Unit 6学习评价第Ⅵ题答案
There are many inventions that have caused great changes in the world. Here's a short introduction. For example,the digital camera was invented by Steven J. Sasson in 1975. It is used for taking photos. The telephone was mvented in 1876 by Alexander Bell. It is used for communicating. The radio was invented by Guglielmo Marconi in 1895. It is used for listening to news and music. They are all useful inventions.