【单选题】When you travel in Xinghua, our local guide will show you around Zheng Banqiao Memorial Hall(纪念馆).
【判断题】Memorial Hall of Harvard was built in honor of Sherman Hoar.
【单选题】Every year, we ______ a school trip to Zhou Enlai Memorial Hall.
【单选题】When was the Bao Gong ’ s Memorial Hall first built ?
A.
In Northern Song Dynasty
B.
In Southern Song Dynasty
【简答题】下列说法正确的是: ( ) A、电路中有电压就一定有电流 B、金属导体中存在有大量自由电荷,只要构成通路,就会有电流 C、电压是形成电流的外部因素 D、电路中有电流不一定有电压A. C