按现行《城市供电规划规范》，10kV变配电站在市区的供电半径一般不宜超过( )m。
A．1000
B．800
C．500
D．300
参考答案：C
我国历史上的六大古都指的是北京、西安、洛阳、___、___、___
A.寿春；南京；杭州
B.寿春；庐州；杭州
C.天津；南京；杭州
D.开封；南京；杭州
Which of the following choices best describes the effects on consumption, investment, and net exports that would result from an increase in the price level, other factors held constant Consumption Investment Net exports（）①A. Decrease Decrease Decrease ②B. Decrease Increase Increase ③C. Increase Decrease Decrease
A. ①
B. ②
C. ③
