零起升压系统线路的重合闸状态为（）？
A、应启用
B、应停用
C、根据具体情况定
D、无关
参考答案：B
The flood is believed ____ more than 50 people and made thousands homeless, ____ it perhaps the most destroying flood in history in the area.
A．killing; to make
B．to have killed; making
C．to have killed; having made
D．having killed; making
传递细胞
