互動封閉仿真課堂
1、智能交互 2、電子板書式視頻教學 3、在線互動問答 4、封閉課堂啟發(fā)式教學方式
隨堂測試、知識梳理、易錯點揭示、總結啟迪智能錯題本
聽課中的錯題能自動加入錯題本，課后可方便復習及導出錯題本升級服務
在線答疑、課后同類題練習、講義下載、短信提醒When someone asked me what business I am in, my face feels 1 . I envy(嫉妒)people who can say that they are writers, bookkeepers and doctors. All these jobs speak for themselves.
I really do make a living by 2 , and a good one, too. I can laugh like a king or like a school boy. It is a skill that I have learned, 3 the skill of mending shoes. Whenever and however laughter is needed, I am asked to do 4 . I laugh like a bus driver or a shopkeeper. I laugh 5 , kindly and happily.
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