如图所示,矩形线圈有N匝,长为a,宽为b,每匝线圈电阻为R,从磁感应强度为B的匀

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问题:

如图所示,矩形线圈有N匝,长为a,宽为b,每匝线圈电阻为R,从磁感应强度为B的匀强磁场中以速度v匀速拉出来,那么,产生的感应电动势和流经线圈中的感应电流的大小应为(  )

A.E=Bav,

B.E=NBav,

C.E=Bav,

D.E=NBav,

考点:导体切割磁感线时的感应电动势闭合电路欧姆定律
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When I was growing up, I was embarrassed to be seen with my father. He (1) severely crippled and very short, and when we would walk together, his hand on my arm (2) balance, people would stare. I would inwardly be afraid (3) squirm at the unwanted attention. If he ever noticed or was bothered, he never let (4) .
It was difficult to coordinate (5) steps - his halting, mine impatient - and because of that, we didn’t say much as we went along. But as we started out, he always said, "You (6) the pace. I will try to adjust to you. "
Our usual walk was to or (7) the subway, which was how he got to (8) . He went to work sick, and (9) nasty weather. He almost never missed a day, and would (10) it to the office even if (11) could not: a matter of pride!
He never talked about himself as an object of pity, (12) did he show any envy of the more fortunate or able. What he looked for in others was a "good heart", and if he found one, the owner was good enough for him.
Now that I am older, I believe that is a proper standard (13) which to judge people, even though I still don’t know precisely (14) a "good heart" is. But I know the times I don’t have one myself.
He has (15) gone many years now, but I think (16) him often. I wonder if he sensed my reluctance to be seen with him during our (17) . If he did, I am (18) I never told him how sorry I was, how unworthy I was, how I regretted it. I think of him when I complain about trifles, when I am (19) of another’s good fortune, when I don’t have a "good heart".
At such times I put my hand on his arm to regain my (20) , and say, "You set the pace, I will try to adjust to you.\

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材料一:“甲盗,赃值千钱,乙知其盗,受分,赃不盈一钱。问乙何论?同论。”一《法律答问》材料二:“甲盗钱以买丝,寄乙,乙受,弗知盗,乙论何也?毋论。”一《法律答问》请结合中国法制史的相关知识回答以下问题:

(1)《法律答问》的性质是什么?效力如何?

(2)材料一中的乙有无法律责任?原因何在?

(3)材料二中的乙有无法律责任?原因何在?

(4)结合上述材料,试析秦代法律中盗罪共犯的成立要件。

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子宫内膜癌的癌前病变是

A.子宫内膜腺瘤样增生
B.子宫内膜不典型增生
C.子宫内膜萎缩
D.子宫内膜囊性增生
E.增生期子宫内膜

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在录入过程中,通过下列哪组功能键可以清空光标所在栏位的所有文字信息。()

A.CTRL+C

B.CTRL+D

C.CTRL+O

D.CTRL+X

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鲫鱼的心脏总不停地()和()。

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