下面关于电流互感器说法正确的是（）
A、正确连接原付绕组的同名端
B、付边要接熔断器
C、付边不要接熔断器
D、铁心要接地
参考答案：A, C, D
Written in great haste(匆忙), _____.
A．Jim made a lot of mistakes in the report
B．there are plenty of mistakes in the report
C．we found several mistakes in his letter
D．the book is full of mistakes
ETF的跟踪偏离度等于考察期内跟踪误差的方差。
