皮皮学，免费搜题
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【单选题】
()成为脑中风、冠心病和心肌梗塞的危险因素。
A.
溃疡
B.
牙列缺失
C.
牙周炎
D.
缺牙
拍照语音搜题，微信中搜索"皮皮学"使用
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【判断题】对于有限长、断面是圆形的载流直导线的磁场问题,由于圆形断面具有对称性,所以可用安培环路定理来求解此导线在周围产生的磁场 。
A.
正确
B.
错误
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【单选题】Sharon: “Really? What happened to them?” a. bored b. shocked c. curious
A.
a
B.
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C.
c
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【判断题】只有载流导体的磁场分布具有对称性的时候,才可以用安培环路定理来求解磁场,否则只能用毕奥萨伐尔定律加叠加原理来求解。
A.
正确
B.
错误
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【判断题】利用安培环路定理可以计算有对称性的磁场强度H,然后根据介质的磁化规律，即磁场强度H和磁感应强度B之间的关系，可以求得B。
A.
正确
B.
错误
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【简答题】在稳恒电流的磁场中,任意选取的闭合积分回路,安培环路定理 都能成立,因此利用安培环路定理可以求出任何电流回路在空间任一处产生的磁场强度.以上看法如有错请指出并改正.
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【单选题】听力原文：M: Is this college really as good as people say? W: It used to be even better. What's about the college?
A.
It's not as good as it was.
B.
It's better than it used to be.
C.
It's better than people say.
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【单选题】---We can use QQ to talk with each other on the Internet. ---Really? Will you please show me it?
A.
what to use
B.
how to use
C.
how can I use
D.
what can I use
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【简答题】Cloze test. Every child has his own dream. Every child hopes to be an . 1 , is it really like what they imagine? As a boy 2 lives in modern times and in a modern city, I feel 3 pressure (压力) on m...
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【单选题】听力原文：M: How did your talk with Henry go? W: It'd never really got off the ground. Q: What does the woman mean? (17)
A.
They didn't have a talk.
B.
They talked about the facts.
C.
They went by plane.
D.
They couldn't lake a walk.
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【单选题】听力原文：Does the green tag mean the item is on sale? (A) You know, I'm not really sure what he meant. (B) Yes, those are 10 percent off. (C) No, that's the only color we have in stock. (6)
A.
B.
C.
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相关题目：
【判断题】对于有限长、断面是圆形的载流直导线的磁场问题,由于圆形断面具有对称性,所以可用安培环路定理来求解此导线在周围产生的磁场 。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Sharon: “Really? What happened to them?” a. bored b. shocked c. curious
A.
a
B.
b
C.
c
查看完整题目与答案
【判断题】只有载流导体的磁场分布具有对称性的时候,才可以用安培环路定理来求解磁场,否则只能用毕奥萨伐尔定律加叠加原理来求解。
A.
正确
B.
错误
查看完整题目与答案
【判断题】利用安培环路定理可以计算有对称性的磁场强度H,然后根据介质的磁化规律，即磁场强度H和磁感应强度B之间的关系，可以求得B。
A.
正确
B.
错误
查看完整题目与答案
【简答题】在稳恒电流的磁场中,任意选取的闭合积分回路,安培环路定理 都能成立,因此利用安培环路定理可以求出任何电流回路在空间任一处产生的磁场强度.以上看法如有错请指出并改正.
查看完整题目与答案
【单选题】听力原文：M: Is this college really as good as people say? W: It used to be even better. What's about the college?
A.
It's not as good as it was.
B.
It's better than it used to be.
C.
It's better than people say.
查看完整题目与答案
【单选题】---We can use QQ to talk with each other on the Internet. ---Really? Will you please show me it?
A.
what to use
B.
how to use
C.
how can I use
D.
what can I use
查看完整题目与答案
【简答题】Cloze test. Every child has his own dream. Every child hopes to be an . 1 , is it really like what they imagine? As a boy 2 lives in modern times and in a modern city, I feel 3 pressure (压力) on m...
查看完整题目与答案
【单选题】听力原文：M: How did your talk with Henry go? W: It'd never really got off the ground. Q: What does the woman mean? (17)
A.
They didn't have a talk.
B.
They talked about the facts.
C.
They went by plane.
D.
They couldn't lake a walk.
查看完整题目与答案
【单选题】听力原文：Does the green tag mean the item is on sale? (A) You know, I'm not really sure what he meant. (B) Yes, those are 10 percent off. (C) No, that's the only color we have in stock. (6)
A.
B.
C.
查看完整题目与答案