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【多选题】
关于气缸盖的受力分析、失效形式和材料选用，下面说法正确的有（）A.
气缸盖同时承受机械负荷和热负荷
B.
气缸盖必须进行淬火处理
C.
由于受热不均匀，所以气缸盖容易出现变形
D.
气缸盖用导热性好、高温机械强度高、能够承受反复热应力的材料
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【单选题】某山羊分娩，努责半小时，仅见胎儿右前蹄露出阴门外，产道检查发现，胎儿头颈姿势无异常，左前肢向后伸展，位于胎儿躯干之下，难产的原因是
A.
肘关节屈曲
B.
肩关节屈曲
C.
腕关节屈曲
D.
腕关节屈曲
E.
头颈侧弯
【简答题】阅读理解 Police officers have two main jobs. They help keep people safe and they protect people's property (财产). They do these things in many ways. They answer calls for help. Some may direct traffic. Ot...
【单选题】某山羊分娩,努责半小时,仅见胎儿右前蹄露出阴门外,产道检查发现,胎儿头颈姿势无异常, 左前肢向后伸展,位于胎儿躯干之下,难产的原因是( )
A.
肘关节屈曲
B.
肩关节屈曲
C.
腕关节屈曲
D.
头颈捻转
E.
头颈侧弯
【简答题】重点分析选择题 : 要求:将每一个选择题将进行知识点分析,将本题 考查的什么知识点,或者是相关知识点,写到笔记本上,拍照上传。依照以下格式进行分析。 例: 1、考查如何将隐藏的工具显示出来,有哪些方法。D选项是不正确的。 2、 3、 . . .
【单选题】While most people think of the prototypical geek(表演滑稽戏的人) when defining computer programmers, the field is becoming more diverse as more people enter the field, attracted by high salaries. However, su...
A.
Because the job is very interesting.
B.
Because they can get well paid in this profession.
C.
Because it takes no great efforts to learn to do it.
D.
Because of the high social status of the professionals.
【简答题】阅读理解。 When people hear a president speak, they seldom think about others helping to shape the presentation (报告). Today, however, presidents depend on writers such as J. Terry Edmonds to help them comm...
【简答题】重点分析选择题 : 要求:将每一个选择题将进行知识点分析,将本题 考查的什么知识点,或者是相关知识点,写到笔记本上,拍照上传。依照以下格式进行分析。 例: 1、考查如何将隐藏的工具显示出来,有哪些方法。D选项是不正确的。 2、 3、 . . .
【简答题】A．Because people scan for the news they are interested in. B．Because different people prefer different newspapers. C．Because people are rarely interested in the same kind of news. D．Because people hav...
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