题目

请从A~E选项中选出与各个情景相符合的选项。A.Lost: An ID card. My name is Betty. My telephone number is 867—1234.B.Found: A purple pencil box. You can call Bill at 256—9856.CLost: I lost a ruler. I's blue. If you find it, please call me at 870—2678.D.Lost: An apple phone. It is a mobile phone. It can store(储存) 500 telephone numbers.E.Found: An English dictionary. Please call Jim. Phone number: 136— 2796—2311.⑴Tony founda blue ruler in his desk, but it is not his ruler. Whose ruler is it?⑵Mike has anEnglish dictionary, but he can't find it. Can you help him?许明家的电吹风内部电路的连接情况如图所示，有带风叶的小电动机一只，电热丝一段(正常工作时，电阻为110Ω，开关两只(S1、S2)，插头一只，导线若干。   (1)观察此图，请按电吹风的功能。在下表空格内填出开关对应的状态(填“闭合”或“断开”)   (2)许明在家中断开其它用电器，将电吹风插入插座(电源电压为220V)，当电吹风吹冷风时，测得15min内，他家中的电能表的铝盘转了45转(电能表上标有“3000r／kw·h”)，请你算出该电吹风吹热风时消耗的总功率。