电流互感器产生误差有变比误差、角误差,其原因是()。
A.一次电流大小有关
B.铁芯质量有关
C.结构尺寸有关
D.二次负载阻抗有关
参考答案:A, B, C, D
He got to the station early, _____ missing his train. [ ]
A. in case of
B. instead of
C. for fear of
D. in search of
乌梅丸适用于
A.久咳B.久痢C.久疟D.久瘀E.久痹