【单选题】判断:粗同轴电缆10Base5中,5代表电缆的最大传输距离是500米。
【单选题】粗同轴电缆 10Base5 中, 5 代表电缆的最大传输距离是 500 米。
【简答题】阅读短文,然后回答下面的问题。 Christmas is a Western holiday. On the holiday, people don't work. Children don't go to school. People have fun together. Christmas is special. Why? Because we have Christmas trees, li...
【单选题】当北京是4月17日上午10点时,美国华盛顿(西五区)是 [ ]