问题
单项选择题
用（）方法，可以将角材料收成一个凸线弯边的工件。
A、放边
B、收边
C、拔缘
D、拱曲
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
用（）方法，可以将角材料收成一个凸线弯边的工件。
A、放边
B、收边
C、拔缘
D、拱曲
参考答案：B
| 根据对话内容，从题后方框内所给的A, B、c、D、E、F、G七个选项中选出五个，使对话完整。 | |
| (A student meets his English teacher at the station after the summer holidays begin. ) S: Hello, Miss Li. How are you? T: Oh, fine, thank you. 1. And how are you and your parents? S: We're all very well, too. Thanks. T: 2. ? S: My parents and I are going to see my grandparents in Shanghai. T: Are you? I'm going to Beidaihe. All the teachers are going. S: 3. ? T: For a week. S: We're coming back in a week, too. 4. . T: Thank you. Have a good trip. There goes the bell, 5. Goodbye. S: Bye
|