单项选择题

UIPageControl的直接父类是（）。

A.UIControl
B.UIView
C.NSObject
D.UIViewController

点击查看答案

上一题目录下一题

单项选择题

A.operations
B.cancelAllOperations
C.operationCount
D.没有正确答案

单项选择题

A.image Named：@"1.jpeg"
B.image With Contents Of File：file Path
C.image With Data：data
D.image

单项选择题

A.NS Managed Object Context
B.NS Managed Object
C.NS Persistent Store Coordinator
D.NS Managed Object Model