问题
单项选择题
铬钼珠光体耐热钢气焊后应作（）处理，以消除应力，改善组织。
A.消应处理
B.高温回火
C.正火
D.高温淬火
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
铬钼珠光体耐热钢气焊后应作（）处理，以消除应力，改善组织。
A.消应处理
B.高温回火
C.正火
D.高温淬火
参考答案：B
| 用方框内单词或短语填空。 | |
They spent a week on a _________ by staying on a boat in the ocean. 2. I have to stay in an _________ hotel because I don't have too much money. 3. When Mr. Wang told us this good news, all of us _________. 4. The boy _________ his father very much. 5. Could you please help me _________ these books? 6. If you could go anywhere in the world, what would be your ________? 7. I want to learn a new language while I'm on vacation. Do you have information about this kind of ________ vacation in Spain or Mexico? 8. I really have flowers, and I collect them from all over the world. I'd like to visit places with beautiful _________. 9. I'm tired and stressed out. I want a _________ vacation on a quiet beach. 10. I like to study the past when I'm on vacation. I'm going to visit some ________ cites in China this year. |