问题
单项选择题
输送无毒、非可燃流体介质，设计压力小于或等于1.0Mpa且设计温度高于-20℃、但是不高于185℃的工业管道为（）级。
A.GC1
B.GC2
C.GC3
D.GA1
答案
参考答案：C
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输送无毒、非可燃流体介质，设计压力小于或等于1.0Mpa且设计温度高于-20℃、但是不高于185℃的工业管道为（）级。
A.GC1
B.GC2
C.GC3
D.GA1
参考答案：C
| 补全对话。 | |
B: It was a great trip. I really enjoyed Sydney and Melbourne. A: 2____ B: For half a month. A: 3____ B: I was in Sydney for about five days. A: Wow, that's a long time. 4____ B: It was hot and sunny the whole time. A: 5____ B:Oh, it was wonderful. And the wildlife was terrific. We saw some Koalas! |