【单选题】At the beginning of each course, the teacher should give a very ______ explanation of his plan for this course.
【单选题】某三相发电机绕组连接成Y形时线电压为380V,若将它连接成Δ形时,则相电压为( )。
【简答题】某三相同步发电机,三相绕组连接成星形时的线电压为10kV,若将它连接成三角形,则线电压是多少?
【多选题】商业银行首席信息官的职责包括()。
A.
直接参与本银行与信息科技运用有关的业务发展决策
【单选题】David gave us a vivid ________ of his trip to Mount Tai after his return. [ ]
【单选题】When people started questioning his explanation,he had to______ more details. [ ]
【单选题】After his long and complicated explanation, I finally ________ his main point.