2019学年度北师大版选修七Unit 20 Period 3Lesson 3 Scientific Breakthroughs课件(47张)
2019学年度北师大版选修七Unit 20 Period 3Lesson 3 Scientific Breakthroughs课件(47张)第2页

Ⅰ.单词自测 1.__________ n.步骤;程序 2.__________ vt.捐赠;赠送 3.__________ vi.通信;符合 4.__________ adv.同时 5.__________ vi.分离,分开

procedure donate correspond meanwhile split