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1、2023北京朝阳高二(下)期末英 语 2023. 7(考试时间100分钟 满分100分)本试卷共10页。考生务必在答题卡指定区域作答,在试卷上作答无效。第一部分 知识运用(共三节,30分)第一节 完形填空(共10小题;每小题1分,共10分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。When I was in seventh grade, I volunteered at a local hospital during the summer.I spent most of the time there with Mr. Gillespi
2、e, _1_ to him and helping with anything that needed to be done. He _2_ had any visitors, and nobody seemed to care about his condition. He became a close friend of mine, even though he _3_ with only an occasional press on my hand. Mr. Gillespie was in a coma(昏迷).Then I left for a week to vacation wi
3、th my parents, and when I came back, Mr. Gillespie was gone. I didnt have the nerve to ask the nurses where he was, for _4_ they might tell me he had died.Several years later, I noticed a _5_ face at the gas station. He was alive! I went over to ask him if it was Mr. Gillespie who was in a coma five
17.(10分)如图所示,一对竖直放置的平行金属板A、B构成电容器,电容为C,电容器的A板接地,板上有一小孔S,加热的灯丝K不断地向外发射电子,电子经过电压为U0的电场加速后通过小孔S,能够打在B板上.设电子的电荷量为e1,质量为m,到达B板的电子都被B板吸收,电子的初速度忽略不计.随着电子的射入,两极板之间的电势差逐渐增加,最终使电子无法打在B板上,规定大地的电势为0,求:(1)当B板吸收了N个电子时,B极板的电势为多少?(2)若A、B两极板之(2)若A、B两极板之间的距离为d,则A、B两极板之间d,(3)达到最大电势差时电容器的带电量Q.
1、2023北京朝阳高二(下)期末英 语 2023. 7(考试时间100分钟 满分100分)本试卷共10页。考生务必在答题卡指定区域作答,在试卷上作答无效。第一部分 知识运用(共三节,30分)第一节 完形填空(共10小题;每小题1分,共10分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。When I was in seventh grade, I volunteered at a local hospital during the summer.I spent most of the time there with Mr. Gillespi
2、e, _1_ to him and helping with anything that needed to be done. He _2_ had any visitors, and nobody seemed to care about his condition. He became a close friend of mine, even though he _3_ with only an occasional press on my hand. Mr. Gillespie was in a coma(昏迷).Then I left for a week to vacation wi
3、th my parents, and when I came back, Mr. Gillespie was gone. I didnt have the nerve to ask the nurses where he was, for _4_ they might tell me he had died.Several years later, I noticed a _5_ face at the gas station. He was alive! I went over to ask him if it was Mr. Gillespie who was in a coma five
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