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( )16. I’m _______ to see you here.
A. surprise B. surprised C. surprising D. surprisingly
( )17. A babysitter is ________ .
A. a person who takes care of the baby B. a baby’s mother
C. a baby’s toy D. a baby
( )18. I ______ the soup. It’s delicious.
A. feet B. smell C. taste D. sound
( )19. “No Photos” means “You can’t ______ here.”
A. take photos B. buy photos C. bring photos D. look at photos
( )20. A carrot is ___________ .
A. a flower B. a stem C. a leaf D. a root
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