荆轲 jÿnɡ ký
参考答案：
战国末著名刺客。齐人。徙卫，人称庆卿。至燕，人称荆卿。燕太子丹奉为上客，衔命入秦刺秦王嬴政，事败被杀。
The government has taken some measures to solve the shortage of electricity, but it may be some time ____________ the situation improves.
A．since
B．when
C．unless
D．before
3311E矿用汽车的转向缸是（）式。
