根据统计图,回答下列问题
如图1所示,一束光线AO经平面镜反射后,照射到楔形玻璃砖表面,再穿过楔形玻璃砖.请画出光路图(注意标出法线)
Despite the fact that all three teams________different approaches to the problem, they were all immediate successes.
根据以上信息,小张经思考后认为,小王所用的电源电压为6伏 . 请你通过计算说明,小张的判断是正确的 .
请将下表填写完整 . (计算电阻时,精确到0.1欧)
化简: .