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【单选题】
补充概算定额中的钢管道的防腐处理费用,关于设计要求的必须在现场进行的特殊防腐措施费用下列说法正确的是()
A.
不考虑
B.
包含在管材单价中
C.
另行计算
D.
以上说法都不对
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【单选题】设计一般闭式齿轮传动时,齿根弯曲疲劳强度计算主要针对的失效形式是
A.
齿面塑性变形
B.
轮齿疲劳折断
C.
齿面点蚀
D.
齿面磨损
【简答题】阅读理解。 Tom and Jim are brothers. They are from Australia. Tom is 14 years old and Jim is 13 years old. They speak English and French. Now they are in China. Their family is in China. There are five peo...
【简答题】设计一般闭式齿轮传动时,齿根弯曲疲劳强度计算主要针对的失效形式是______。
【简答题】阅读理解。 Tom and Jim are brothers. They are from Australia. Tom is 14 years old and Jim is 13 years old. They speak English and French. Today they are in China. Now they are living in China. Their home i...
【简答题】Listen to the conversation and tick T or F. 1. Tom didn't sleep well last night. 2. Tom has a toothache. 3. The doctor can't find Tom's problem. 4. Tom must stay in the hospital until he is well.
【单选题】设计一般闭式齿轮传动时,齿根弯曲疲劳强度计算主要针对的失效形式是 。
A.
塑性变形
B.
轮齿疲劳折断
C.
点蚀
D.
磨损
【单选题】设计一般闭式齿轮传动时,齿根弯曲疲劳强度主要针对的失效形式是 。
A.
齿面塑性变形
B.
轮齿疲劳折断
C.
齿面点蚀
D.
齿面磨损
【判断题】22上海是长江三角洲冲积平原的一部分。
A.
正确
B.
错误
【单选题】设计一般闭式齿轮传动时,齿根弯曲疲劳强度计算主要针对的失效形式是 。
A.
齿面塑性变形
B.
轮齿疲劳折断
C.
齿面点蚀
D.
磨损
【单选题】--Where does your uncle work, Tom ? --He is in a hospital he works as a doctor.
A.
that
B.
which
C.
where
D.
what
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