钢安排调质处理目的什么?
参考答案:
使其获得强度、硬度、塑性和韧性都较好的综合力学性能。
情景选择。
1. 当他人向你表示感谢时,你应该说:____________[ ]
A. No, thanks for me.
B. You are welcome.
C. Don't say that.
2. 当你想说我最喜欢的季节是春天时,应说:____________[ ]
A. My favourite season is spring.
B. I don't like spring.
C. What's your favourite season?
3. 你问Jenny你会弹钢琴吗?应问:____________[ ]
A. Can you play the piano?
B. Can you play the violin?
C. Can you play the guitar?
4. 当你建议你的朋友说让我们包饺子吧,应说:____________[ ]
B. Can you make dumplings?
C. Let's make dumplings.
5. 你想问你喜欢春节吗?应问:____________[ ]
A. Do you like the Spring Festival?
B. I like the Spring Festival.
C. Would you like Spring Festival?
不属于鼻咽癌准适形摆位的注意事项的是()
A、将铅模托板牢固地插入槽内,并应有安全保证措施
B、患者照射时要练习张口
C、放置托板时一定要注意患者姓名,照射野序号及正、反、上、下、左、的方向
D、在粘铅块时一定要和托板粘牢,用高粘度胶,以防脱落
E、因铅模托板较重,上、下必须小心,防止脱手,以免砸伤患者或砸坏机器