互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本，课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒Ten years later, Smith came back to the old woman’s door again and _41_ her a bag of money. She was very _42_.
Smith said, “Ten years ago you gave me some potatoes. I _43_ some potato plants . From those plants, I grew some more plants. Now I am a _44_ farmer because I have enough money to live, but I never_45_ how kind you are to me.”
( )36.A. so B. or C. but
( )37. A. full B. hun gry C. tired
( )38. A. potatoes B. meat C. apples
( )39. A. take B. buy C. plant
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