绘图题:试画出下图所示系统在k点两相短路时正、负序电压的分布图。
参考答案:
He ________ comb his hair at the table, even though he knows I don’t like it.
A.shall
B.may
C.will
D.can
公安政策首先是山( )提出来的。
A.公安机关
B.领导
C.党
D.国家