【单选题】在 android 程序中, Log.i() 用于输出什么级别的日志信息
【单选题】—John, will you please _______ the blackboard now? It’s your duty. —OK. [ ]
【单选题】David Burt’s dream in China is to go into the west and ______ an early childhood school there.
【单选题】关于包虫病,下列哪项说法是错误的( )。
【单选题】Something as simple as______ thoughts openly can make a powerful difference to one's health. [ ]