问题
判断题
变压器在105%额定电压下可输出最大电流是额定电压下的1倍。
答案
参考答案:错
变压器在105%额定电压下可输出最大电流是额定电压下的1倍。
参考答案:错
用方框中所给单词的适当形式填空。每词仅用一次(每空限填一词)
小题2:In some countries, children will leave their parents when they are 18 years old. 小题3:Tara her two-year-old brother because her parents were very busy yesterday. 小题4:There are nine and eighty-five students in our school. 小题5:If you want to keep healthy ,you should have a good habit. |