【简答题】Every month, junior high schools in China choose one hero of the month. This person is a hero because he or she has done something to help protect animals in er. Huang Jing decided to write a lett...
【简答题】As we all know, there have been so many classic Chinese stories in the long history of China. Choose one to tell in English!Or just create one according to the Chinese history by yourself. Time limit ...
【判断题】绝缘栅双极晶体管一般英文简写为IGBT。
【判断题】使用iterator迭代集合元素时,可以调用集合对象的方法增删元素