多项选择题
Which three objects are components of a menu module?（）
A.Menus B.Canvases C.Object libraries D.Visual attributes E.Attached libraries
单项选择题 Whichbuilt-indoyouusetodeterminewhichtimerinformmodulehasexpired?（）
单项选择题 Whichbuilt-inreturnsaBOOLEANvaluethatindicatedwhetheranobjectsinternalIDisavailable?（）
多项选择题 Whichtwobuilt-inswouldyouusetoremovetheHOUR_ALARMtimerusingthetimer_idparameter?（）
