私自超过合同约定的容量用电的,除应拆除私增容设备外,属于两部制电价的用户,应补交私增设备容量使用月数的基本电费,并承担私增容量每千瓦(千伏安)50元的违约使用电费。
参考答案:错
The White House said on Monday that the relations between the United States and China were in______ good shape but acknowledge some differences between _____ two countries.
A∕ , the B a, the C the, the D the, ∕
在共发射极电路中,当Ib=1mA时,Ic=50mA,当Ib=1.5mA时,Ic=100mA,此三极管的交流放大系数是()。
A、50
B、67
C、100
D、33