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【单选题】
悬臂梁受力如图所示,其中( )
A.
AB段是纯弯曲，BC段是横力弯曲
B.
AB段是横力弯曲，BC段是纯弯曲
C.
均是纯弯曲
D.
均是横力弯曲
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举一反三
【单选题】设全集 U ={1,2,3,4}，则集合 A ='{1,' 3}，则C U A=（  ）
A.
{1, 4}
B.
{2, 4}
C.
{3, 4}
D.
{2, 3}
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【单选题】'The last administration made it perfectly clear. We're being consistent with their policies.' is said by().
A.
David
B.
Karen
C.
American President
D.
Natalie
查看完整题目与答案
【简答题】A．They came from the original wing. B．They're made of the same material. C．They're similar in shape. D．They were designed by the same person.
查看完整题目与答案
【单选题】—You’re not angry then? —______. I’ve never laughed so much in my life.
A.
You’re joking
B.
You’ve made it
C.
That’s all right
D.
Far from it
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【判断题】The old cabbie made reunions with his friend every year all his life.
A.
正确
B.
错误
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【单选题】All the preparations ,we’re ready to start. [     ]
A.
made
B.
being made
C.
having made
D.
have been made
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【单选题】全年检修，抽检（）%并按年检力矩进行紧固。如发现有一颗螺栓松动则整个节点的螺栓应全部紧固一遍
A.
20
B.
50
C.
10
D.
30
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【单选题】设 ， ，且满足 则
A.
1
B.
2
C.
3
D.
4
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【单选题】设集合 A={2,3, a}, B={1,4}, 且A ∩B ={4 }，则a = （ ）
A.
1
B.
2
C.
3
D.
4
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【单选题】蒸汽压缩式制冷系统,当冷凝温度上升时,( )将增加。
A.
制冷量
B.
压缩机功耗
C.
吸气质量体积
D.
制冷剂的循环量
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相关题目：
【单选题】设全集 U ={1,2,3,4}，则集合 A ='{1,' 3}，则C U A=（  ）
A.
{1, 4}
B.
{2, 4}
C.
{3, 4}
D.
{2, 3}
查看完整题目与答案
【单选题】'The last administration made it perfectly clear. We're being consistent with their policies.' is said by().
A.
David
B.
Karen
C.
American President
D.
Natalie
查看完整题目与答案
【简答题】A．They came from the original wing. B．They're made of the same material. C．They're similar in shape. D．They were designed by the same person.
查看完整题目与答案
【单选题】—You’re not angry then? —______. I’ve never laughed so much in my life.
A.
You’re joking
B.
You’ve made it
C.
That’s all right
D.
Far from it
查看完整题目与答案
【判断题】The old cabbie made reunions with his friend every year all his life.
A.
正确
B.
错误
查看完整题目与答案
【单选题】All the preparations ,we’re ready to start. [     ]
A.
made
B.
being made
C.
having made
D.
have been made
查看完整题目与答案
【单选题】全年检修，抽检（）%并按年检力矩进行紧固。如发现有一颗螺栓松动则整个节点的螺栓应全部紧固一遍
A.
20
B.
50
C.
10
D.
30
查看完整题目与答案
【单选题】设 ， ，且满足 则
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【单选题】设集合 A={2,3, a}, B={1,4}, 且A ∩B ={4 }，则a = （ ）
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【单选题】蒸汽压缩式制冷系统,当冷凝温度上升时,( )将增加。
A.
制冷量
B.
压缩机功耗
C.
吸气质量体积
D.
制冷剂的循环量
查看完整题目与答案