【简答题】对正在进行中的下列哪一种行为可以进行正当防卫( )
【单选题】Today people make fire by burning wood or knocking two pieces of stones.
【单选题】The author believes that today people are often assessed by their______.
【单选题】Today people have more messages to give to each other than twenty years ago.
【判断题】[判断题]第257题:铜线与铝线在需要时可以直接连接。 A 对 B 错