问题
单项选择题
多层压力容器的封头采用单层低合金高强度钢焊接时，若层板材料对裂纹敏感性高，不论封头堆焊与否，封头与层板筒体焊后（）
A.必须热处理
B.不得热处理
C.热处理与否均可
答案
参考答案：A
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多层压力容器的封头采用单层低合金高强度钢焊接时，若层板材料对裂纹敏感性高，不论封头堆焊与否，封头与层板筒体焊后（）
A.必须热处理
B.不得热处理
C.热处理与否均可
参考答案：A
| 阅读理解 | |||||||||||||||||||||||||
| SUNNY SCHOOL We are a bilingual(双语) school for children of 6-15. We want a cook, a library assistant, a sports coach(教练) and a language teacher.
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| 根据招聘启事，选择最佳答案。 | |||||||||||||||||||||||||
| 1. ________ can't go to Sunny School. | |||||||||||||||||||||||||
| A. A four-year-old(四岁的)child B. A ten-year-old child C. An eleven-year-old child D. A fifteen-year-old child | |||||||||||||||||||||||||
| 2. They don't need (需要)________ in Sunny School. | |||||||||||||||||||||||||
| A. a cook B. a headmaster (校长) C. a library assistant D. a sports coach | |||||||||||||||||||||||||
| 3. _________ may not be able to(能) speak English. | |||||||||||||||||||||||||
| A. The language teacher B. The library assistant C. The cook D. The sports coach | |||||||||||||||||||||||||
| 4. The coach(教练)must major in (主修) _________. | |||||||||||||||||||||||||
| A. Chinese B. English C. physical education D. language | |||||||||||||||||||||||||
| 5. Which is right? | |||||||||||||||||||||||||
| A. The teacher can only teach Chinese. B. A twenty-five-year old cook can't work in the school. C. A teacher must be strong. D. The library assistant must be careful. |