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【简答题】
3 焊接残余应力和焊接残余变形是如何产生的?焊接残余应力和焊接残余变形对结构性能有何影响?减少焊接残余应力和焊接残余变形的方法有哪些?
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反馈参考答案：
举一反三
【单选题】下列对数据库的描述中不正确的是
A.
数据库减少了数据冗余
B.
若系统是完全可以控制的，则系统可确保更新时的一致性
C.
数据库中的数据可以共享
D.
数据库避免了一切数据的重复
【单选题】下列对数据库的描述中不正确的是
A.
数据库不存在数据冗余
B.
若系统是完全可以控制的,则系统可确保更新时的一致性
C.
数据库中的数据可以共享
D.
数据库减少了数据冗余
【单选题】中间站办理的主要作业是哪两个：（ ），（ ）
A.
接发列车作业；摘挂车辆技术作业
B.
接发列车作业；上下旅客作业
C.
上下旅客作业；装卸货物作业
D.
接发列车作业；装卸货物作业
【单选题】Terrell is being considered for promotion from a plant manager to top management. He is unsure whether he is qualified for the position. He wants to ensure that he is an effective manager, and not sim...
A.
He is part of a theatrical group that gives performances to hundreds of people, showing that he is not afraid to speak in front of a crowd.
B.
He juggles being a parent, working as a middle manager, and having personal hobbies, showing an ability to do well in all aspects of his life without going overboard in one or neglecting another.
C.
He has many siblings, showing that he knows how to share space with a large number of people.
D.
He quickly learns how to play new games by following the rules explained to him.
E.
He was a member of the debate team in high school and consequently is well-versed in being able to argue both sides of an issue.
【单选题】Whether to go to college is optional ______that no student is required to do so as he is required by law in most states of America to go to high school.
A.
in a sense
B.
in the way
C.
in the sense
D.
in the case
【简答题】中间站办理的主要作业是哪两个:( ),( )
【多选题】T he process o r of a small-scale e mbedded system is
A.
8 bit
B.
16 bit
C.
32 bit
D.
64 bit
【单选题】下列对数据库的描述中不正确的是
A.
数据库中的数据可以共享
B.
数据库减少了数据冗余
C.
数据库避免了一切数据的重复
D.
若系统是完全可以控制的,则系统可确保更新时的一致性
【单选题】He is hopeful about his chances of winning a gold medal in the Olympics next year.
A.
optimistic
B.
optional
C.
outstanding
D.
obvious
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