问题
名词解释
氧乙炔焰
答案
参考答案:
乙炔与氧混和燃烧所形成的火焰。
氧乙炔焰
参考答案:
乙炔与氧混和燃烧所形成的火焰。
补全对话(每小题1分,共5分)根据对话内容,从方框内选择适当的选项完成对话。
B:小题1:_________ A: A concert? Who will sing at the concert? B: Swift Taylor.小题2:_________ A: Certainly, I'd like to. She is my favorite singer. 小题3:________ B: Eighty yuan. A: Oh, it's too expensive. 小题4:_______ B: I don't have so much money, either. 小题5:_________ A: That's a good idea. Can I join you? B: No problem. Shall we meet at the gate of the park at four o'clock? A: OK. See you then. |