韶山型电力机车的控制电源由110V直流稳压电源和（）组成。
参考答案：蓄电池
After the war, a new school building was put up ______there had once been a theatre.
A．when
B．in which
C．the place where
D．where
全口义齿初戴时发现正中正常，前伸前牙早接触应调磨
A．上切牙切缘舌斜面为主B．上切牙切缘唇斜面C．上切牙舌窝D．下切牙唇斜面为主E．下切牙舌斜面
