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【判断题】
双重化配置的每套完整、独立的保护装置处理可能发生的所有类型的故障。两套保护之间不应有任何电气联系，当一套保护退出时不应影响另一套保护的运行。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】简述三种原子光谱(发射、吸收与荧光)分析法的本质区别。
【简答题】Why do people feel squeezed when their average income rises considerably? A) Their material pursuits have gone far ahead of their earnings. B) Their purchasing power has dropped markedly with inflatio...
【简答题】酶含量测定包括酶 和酶质量测定两种类型，但以前者为主。
【单选题】Why do factories want to know how people feel about different colors?
A.
People care more about the colors of things than the shapes.
B.
People choose to buy things by their colors.
C.
People like things with bright colors.
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