题目

某阻值为10欧的定值电阻连在一节新干电池两端，则它两端的电压为 (7)  伏，，通过它的电流是  (8)  安；若把它连在3伏的电源两端，它的电阻为  (9)  欧。  答案：         (7)1.5；       (8)0.15；    (9)10。解析:略 根据句意和汉语提示及所给的单词，完成句子。小题1:The Great Wall is the ___________(象征)of China.小题2:Finally, he _________(意识到) that he passed the English exam.小题3:Is there a_________(公共的) telephone nearby?小题4:It seemed to be __________to get inside because of too many people(hope).小题5:Many people use computers in their __________lives(day).