Please go get the clicker at the Bass Circulation Desk, and they should have enough everybody in the class.
去巴斯借书处领取表决器吧,应该每人都能领取到一个
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选
应用推荐
模块上移
模块下移
不移动