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【简答题】
电压互感器按用途分可分为（）电压互感器、（）电压互感器和（）电压互感器；按分可分为（）电压互感器和（）电压互感器。
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反馈参考答案：
举一反三
【判断题】成本平衡点分析法是指在各备选方案的相关业务量为不确定因素时，通过判断不同水平上的业务量与成本平衡点业务量之间的关系，来作出互斥方案决策的一种方法。
A.
正确
B.
错误
【单选题】Being an only child has little to do with a child s social development. A recent study that followed thirty only children and thirty-five first-born children to the age of three found that the two gro...
A.
The groups being compared did not contain the same number of children.
B.
More time was spent observing the interactions of children with their mothers than with their fathers.
C.
Most of the researchers involved in the study were persons who had no brothers or sisters.
D.
The first-born children were, on the average, nearly three when their parents had the second children.
E.
The 'other adults' described in the study consisted mainly of members of the research team.
【简答题】各地で行われた農民の抵抗について、農民の間で格差が広がったことで、貧農が豪農を襲うことを何というか。( )
【简答题】(5分)美国农部W.W.Garner和H.A、Allard在大豆与烟草的试验中,观察到什么因素是对开花起决定作用的?
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