能够使继电器可靠返回的最大电流是继电器的： - 查题网

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高等继续教育 / 电力系统继电保护原理

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题型描述: 单选题
能够使继电器可靠返回的最大电流是继电器的：
A.额定电流
B.返回电流
C.启动电流
D.精工电流

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电力系统继电保护原理

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3、K企业集团下属的甲生产经营型子公司，2001年8月末购入A设备，价值1000万元。政府会计直线折旧期为5年，残值率10%；税法直线折旧率为12.5%，无残值；集团内部首期折旧率为50%（可与购置当年享受），每年内部折旧率为30%（按设备净值计算）。2001年甲子公司实现会计利润800万元，所得税率30%。要求：（1）计算甲子公司2001年的实际应税所得额与内部应税所得额。（2）计算会计应纳所得税、税法应纳所得税、内部应纳所得税。（3）说明母公司与子公司甲之间应如何进行相关的资金结转。高级财务管理

Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．Land becomes desert after all trees are cut down because _ _ _ _ _ _ _ _ _ _ . 大学英语（三）

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