1 在图 3.04 所示的各个电路图中，除 A0 和 V0 外，其余电流表和电压表的读数在图上 都已标出（都是正弦量的有效值），试求电流表 A0 或电压表的读数

Production: Vermedia (Lisbon), Cooperativa Arco-Íris (Bissau), Eurocréation Production (Paris), and Rádiotelevisão Portuguesa (Lis￾bon); color, 35mm; running time: 90 minutes. Released 1992. Producer: Paulo de Sousa; screenplay: Flora Gomes, Ina Césair

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健美训练教程_打造“v”体形

2-1 已知放大器如图 1-1 所示，EC=12 V, RB1=30K, RB2=10K, RC=3K, RF=390Ω, RE=3K, RL=3K,β=50 求：(1).静态工作点；(2).画出微变等效电路；(3).电压放大倍数；(4).放大器的 输入电阻；(5).放大器的输出电阻

When Mendel did his crosses of pea plants, he knew what a pea plant was supposed to look like: a small plant with green leaves, purple flowers, and smooth seeds. But if all pea plants were like that, he would never have been able to sort out the rules of heredity—in a cross of green peas with green peas, there would have been no visible differences to reveal the

I . Teaching Content II . Teaching Objectives III . Teaching Requirements IV . Teaching Approaches V . Teaching Focal Points

9-1OTL电路如图P9-1所示。已知Uc=UE=20V,负载R1=8,并忽略功率

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（1)重新布局--调整文章结构,令更臻完美. (2)增加内容--注释中增添大量观点提示,正文内新增「思维逻辑 v s 思维科学