对110kV高压输变线路系统而言，其无线电干扰场强允许值是（）dB（μV／m）。
参考答案：46
--- Jim took one-hour ride just now. What a short time he spent finishing such a long way!
--- He is _____ experienced rider.
A．an; the
B．an; a
C．a ;an
D．a; the
典型的投票表决制度有哪两种？
