电流互感器星形接线，可测量（）负荷电流，监视每相负荷不对称情况。
参考答案：三相
—Are you going to the countryside for a holiday?
—________. I wonder if I'll be free then.[ ]
A. Let's go
B. It's up to you
C. Take it easy
D. It all depends
某温度变送器的测量范围是-200～600℃，说明其上限为600℃，下限为-200℃,量程为800℃
