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、易錯點揭示、總結(jié)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(fù)習(xí)及導(dǎo)出錯題本升級服務(wù)
在線答疑、課后同類題練習(xí)、講義下載、短信提醒6. … planting peanuts that use the ground’s surface followed by vegetables that put down deep roots.
7. Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving it in the ground to become a natural fertilizer.
8. This also keeps the air, soil, water and crops free from chemicals.
9. In addition, fruit, vegetables and other food grown with chemical fertilizers usually grow too fast to be full of much nutrition.
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