发生两相短路时，短路电流中含有（）
A.正序分量和负序分量
B.正序和零序分量
C.负序和零序分量
D.正序-负序和零序分量
参考答案：A
______ reasonable, the idea he ______ to create a friendly environment attracted much public attention. [ ]
A. Sounded; came about
B. Sounded; came across
C. Sounding; came up with
D. Sounding; came along
简述定量预测。
