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高考培訓(xùn)
高中數(shù)學(xué)視頻同步課程
主講老師：紀(jì)老師、周沛耕、毛允魁等
特色服務(wù)：互動封閉仿真課堂啟發(fā)式教學(xué)方式智能錯(cuò)題本在線答疑
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互動封閉仿真課堂
1、智能交互 2、電子板書式視頻教學(xué) 3、在線互動問答 4、封閉課堂啟發(fā)式教學(xué)方式
隨堂測試、知識梳理、易錯(cuò)點(diǎn)揭示、總結(jié)啟迪智能錯(cuò)題本
聽課中的錯(cuò)題能自動加入錯(cuò)題本，課后可方便復(fù)習(xí)及導(dǎo)出錯(cuò)題本升級服務(wù)
在線答疑、課后同類題練習(xí)、講義下載、短信提醒15. root 1) n. a) the part of a plant that grows down into the soil in search of food and water; b) the part of a tooth, hair, or organ that holds it to the rest of the body; c) the central part or cause of sth; d) one’s roots: the place where one grew up. 2) v. to make or get roots
These plants have very deep roots.
This is the root cause of poverty.
Some people believe that money is the root of all evil. Where is your roots? Do roses root easily?
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