题目

Rome has the Forum．London has Speaker’s Corner．Now always-on-the-go New Yorkers have Liz and Bill． Liz and Bill, two college graduates in their early 20s, have spent a whole year trying to have thousands of people talk to them in subway and on busy street corners．Just talk． Using a 2-foot-tall sign that says, “Talk to Me”, they attract conversationalists, who one evening included a mental patient, and men in business suits． They don’t collect money．They don’t push religion．So what’s the point? “To see what happens,” said Liz．“We simply enjoy life with open c10．图1、图2分别是小明家使用的电能表和白炽灯示意图，此电能表的示数为31.6kW•h，他家允许接入用电器总功率最大为2200W；这只白炽灯的额   定电压为220V，该灯正常工作1min消耗的电能为6000J．