问题
填空题
为了保证电容量和介质损耗因数测量的准确,对测量仪器的要求如下:介质损耗因数的测量不确定度不大于(),电容量的测量不确定度不大于()。
答案
参考答案:0.001;0.5%
为了保证电容量和介质损耗因数测量的准确,对测量仪器的要求如下:介质损耗因数的测量不确定度不大于(),电容量的测量不确定度不大于()。
参考答案:0.001;0.5%
完形填空。 | |||
Look, this is my village. It is in the mountains. There 1____________ many small houses and a river. There is a bridge 2____________ the river. There aren't 3____________ fish in the river. The water is clean. The air is fresh. The sky is 4____________. The clouds are white. I can run on the grass. It's a beautiful 5____________.
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