北半球地磁场的竖直分量向下.如图所示,在北京某中学实验室的水平桌面上,放置边长为

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问题:

北半球地磁场的竖直分量向下.如图所示,在北京某中学实验室的水平桌面上,放置边长为L的正方形闭合导体线圈abcd,线圈的ab边沿南北方向,ad边沿东西方向.下列说法中正确的是(  )

A.若使线圈向东平动,则a点的电势比b点的电势低

B.若使线圈向北平动,则a点的电势比b点的电势低

C.若以ab为轴将线圈向上翻转,则线圈中感应电流方向为a→b→c→d→a

D.若以ab为轴将线圈向上翻转,则线圈中感应电流方向为a→d→c→b→a

考点:楞次定律
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消食药

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膜性增生性肾小球肾炎Ⅰ型光镜下的特征性改变为()

A.肾小球毛细血管内皮细胞增生

B.肾小球毛细血管基底膜增厚,呈“虫蚀状”改变

C.增厚的肾小球毛细血管基底膜分裂成两层,呈“双轨状”

D.肾小球毛细血管基底膜呈钉状突起

E.肾小球毛细血管基底膜常有裂孔缺损

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According to traditional Cherokee beliefs, we are part of (1) . We don’t (2) with it and we’re not trying to (3) it. We are a part of the Great Life. And within the Great Life, there are three great Laws of Nature, which tell us how we have to live in (4) with everything else. The First Law of Nature is that you don’t take any life without real (5) . So we shouldn’t (6) needlessly. We believe everything is alive, including animals, plants and (7) . And so to us, taking the life of a plant is just as grave a 8() as taking the life of an animal. The Second Law is that everything we do should (9) the Great Life. And everything we do (10) the Great Life, and everything that (11) within the Great Life affects us. So it’s very important that what we do will not (12) other parts of the Great Life. The Third Law basically is that we don’t (13) where we live. And where we live is not our (14) , small community. It’s this (15) . We don’t pour chemical (16) down the drain because they all wind up in the water. It might seem a little difficult to live by those three laws in this (17) society. But there are still a lot of things that we can do to bring these laws into our lives, such as (18) , using the (19) as little as possible, and (20) gardening.

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行政行为在空间上的表现形式和在时间上的跨度,包括行政行为方式、步骤、次序、时限等不可分割的内容的是( )。

A.行政程序
B.行政诉讼
C.行政复议
D.行政处罚

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精神分析理论将焦虑分为:( )、神经症性焦虑、道德性焦虑。

A.现实性焦虑
B.适应性焦虑
C.存在性焦虑
D.幻想性焦虑

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