电能计量装置由哪些部分组成?
参考答案:
电能计量装置包含各种类型电能表、计量用电压、电流互感器及其计量二次回路、电能计量屏(柜、箱)等。
My host family are very kind to me. I feel that I'm _ the family. [ ]
A. a part
B. parts of
C. part of
D. part in
与全口义齿咀嚼功能不好无关的原因是()
A.上下颌牙接触面积过小
B.人工牙面解剖形态差
C.垂直距离过低
D.义齿固位稳定性差
E.力过大