题目

阅读对话，选出正确的答案。Man: Excuse me. Where is the gym (体育馆)?Woman: Let me see. It’s next to the Fuxing Primary School.Man: How can I get there?Woman: It’s very far. You can take the No. 9 bus, and get off at Renmin Road. Then go straight, turn right at the second crossing. The gym is on your left.Man: OK. But where is the bus stop?Woman: It’s over there. Look! The bus is coming. Man: Oh. I see. Thanks.【1】The man wants to go to the _______. ( )A.Fuxing Primary School B.bus stop C.gym【2】He can go there _______. ( )A.on foot B.by bus C.by bike【3】The gym i如图所示的电路中电源电压不变，闭合电键S后，当滑动变阻器的滑片向右移动时，下列判断中正确的是:A．电流表的示数不变，电压表的示数不变;　　 B．电压表与电流表示数的比值变小; C．R1的电功率不变，R2的电功率变小;　　　　 D．R1的电功率变大，R2的电功率变大.