电压互感器正常运行中相当于一个运行()的降压变压器。
A.空载
B.负载
C.降压
D.升压
参考答案:A
As a student, you should do your duty and put your heart into study ______.
[ ]
A. at one time
B. at all times
C. at a time
D. at times
急性肾衰竭少尿期时的临床表现不包括()
A.尿量减少
B.血肌酐进行性升高
C.高钾血症
D.高钙血症
E.高磷血症