2019年2月22日

L252 小组作业

摘要： Hans: Hi Good morning everyone! Let me introduce a new colleague for you, Berry Berry: Hi Good morning everyone! I am Berry, I’m glad to see you Hans: 阅读全文

posted @ 2019-02-22 19:46 keep1 阅读(191) 评论(0) 推荐(0)

2019-02-22 L231

摘要： Scientists at the Massachusetts Institute of Technology have said lobsters could be key to creating super-strong and flexible armor in the future. The 阅读全文

posted @ 2019-02-22 08:18 keep1 阅读(129) 评论(0) 推荐(0)

2019年2月22日

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