单选：变压器的运行电压一般不应高于该运行分接位置电压的（）A．95%B．105%C．120%D．115%

[阅读理解]Martin Luther King was a black minister, who became a great leader of...

日本人在交换名片时，一定是地位高的人先递。A．正确B．错误

XP的性能控制台能完成的工作有（）A．了解XP工作负荷以及对系统资源的相应影响B．监视计算机中的资源使用情况C．优化系统D．利用监视结果来测试配置更改或其他调整结果、诊断问题

[ 词汇与结构]—The young ______eaten up almost everything on the table.A is B are C ha

[阅读理解] Long, long ago there was no zero. To write the number sixty-three...