特种设备（）档案中使用情况的证明资料不包括制造质量证明书内容
参考答案：安全技术
补全对话。
A: What are you doing for vacation?
B: I'm going to San Francisco.
A: 1 . Who are you going 2 ?
B: I'm going with my family.
A: 3 ?
B: I'm going on the 11th.
A: 4 ?
B: I'm staying for a week.
A: How are you getting there?
B: I'm 5 a plane there.
A: I wish you a good trip.
B: Thank you.
用（）焊法，火焰指向待焊金属，氧化现象严重。
