问题
多项选择题
活塞式压缩机曲轴各主轴颈出现磨损、划伤等表面缺陷，可采用（）进行修理。
A.补焊
B.金属喷镀
C.手工研磨然后抛光
D.更换
答案
参考答案：B, C
搜题请搜索小程序“爱下问搜题”
活塞式压缩机曲轴各主轴颈出现磨损、划伤等表面缺陷，可采用（）进行修理。
A.补焊
B.金属喷镀
C.手工研磨然后抛光
D.更换
参考答案：B, C
| 补全对话。 | |
| A: Hi, Can I 1 you? A: Good. May I 3 your name? A: 4 your first name? A: How 5 are you? A: How can we 6 you ? A: Can you draw? A: Here 9 a card. Please fill it 10 . | B: Yes, please. I want to 2 the art club. B: Jones. B: Cindy. B: Twelve. B: My e-mail 7 is cindy jonmes@163.com. B: Yes, a little. I want to learn 8 art. B: Thank you. |