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【简答题】
按传力情况的不同，基础可分为（）基础、（）基础两种类型。
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【简答题】名词解释：金属的力学性能
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【简答题】名词解释: 金属的力学性能 强度 刚度 塑性
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【多选题】随机抽样方法通常包括（ ）
A.
简单随机抽样
B.
分层随机抽样
C.
判断抽样
D.
分群抽样
E.
典型随机抽样
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【判断题】我国旅行社根据业务范围,分为经营入境业务和国内业务的旅行社、经营入境业务、国内业务和出境的旅行社两类,这属于水平分工体系。
A.
正确
B.
错误
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【单选题】I met Julia the other day.It was the first time we each other since we graduated from school.
A.
saw
B.
had seen
C.
did see
D.
have seen
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【简答题】She is a beautiful red-haired girl. she has been shopping with her mom in Wal-Mart. It was raining hard outside. We all stood there under the awning (雨篷). Her voice was so sweet. “Mom, let’s run throu...
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【简答题】解释以下名词:1.金属的力学性能 2. 强度 3. 塑性 4. 硬度 5. 韧性 6. 疲劳强度
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【单选题】It was so late that we_________had time to catch the train.
A.
nearly
B.
almost
C.
hardly
D.
simply
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【简答题】教材第40页第1题(1)-(4),第3题。 名词解释:(1)弹性比功;(2)滞弹性;(3)循环韧性;(4)包申格效应 3. 金属的弹性模量主要取决于什么因素?为什么说它是一个对组织不敏感的力学性能指标?
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【简答题】It was four o'clock when we left Micatlan,and we traveled quickly until it became almost completely dark.It was our intention to return to our general quarters in Atlacomulco that night.We had a long ...
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【简答题】名词解释：金属的力学性能
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【简答题】名词解释: 金属的力学性能 强度 刚度 塑性
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【多选题】随机抽样方法通常包括（ ）
A.
简单随机抽样
B.
分层随机抽样
C.
判断抽样
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分群抽样
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【判断题】我国旅行社根据业务范围,分为经营入境业务和国内业务的旅行社、经营入境业务、国内业务和出境的旅行社两类,这属于水平分工体系。
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B.
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【单选题】I met Julia the other day.It was the first time we each other since we graduated from school.
A.
saw
B.
had seen
C.
did see
D.
have seen
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【简答题】She is a beautiful red-haired girl. she has been shopping with her mom in Wal-Mart. It was raining hard outside. We all stood there under the awning (雨篷). Her voice was so sweet. “Mom, let’s run throu...
查看完整题目与答案
【简答题】解释以下名词:1.金属的力学性能 2. 强度 3. 塑性 4. 硬度 5. 韧性 6. 疲劳强度
查看完整题目与答案
【单选题】It was so late that we_________had time to catch the train.
A.
nearly
B.
almost
C.
hardly
D.
simply
查看完整题目与答案
【简答题】教材第40页第1题(1)-(4),第3题。 名词解释:(1)弹性比功;(2)滞弹性;(3)循环韧性;(4)包申格效应 3. 金属的弹性模量主要取决于什么因素?为什么说它是一个对组织不敏感的力学性能指标?
查看完整题目与答案
【简答题】It was four o'clock when we left Micatlan,and we traveled quickly until it became almost completely dark.It was our intention to return to our general quarters in Atlacomulco that night.We had a long ...
查看完整题目与答案