![](https://img.jiaoyuzixun.net/upload/202202/1645976417_621b9b611a02b.jpg?x-oss-process=style/f300_200)
人教版PEP英语五年级下册Unit3: My school calendar
Part ALet's learnWhen is Tree Planting Day?植树节是什么时候?It's in March. 在三月。January(Jan.) 一月:New Year's Day...
![](https://img.jiaoyuzixun.net/upload/202311/1700560527_655c7e8fda4d3.jpg?x-oss-process=style/f300_200)
八年级-物理-上册知识点总结
1.机械运动第1节长度和时间的测量长度的单位(1)1nm=1×10-3μm=1×10-6mm=1×10-7cm=1×10-8dm=1×10-9m(2)1nm2=1×10-6μm2=1×10-12mm2=...