A.activityB.flowchartC.designD.management
A.activity
B.flowchart
C.design
D.management
A.activity
B.flowchart
C.design
D.management
A、resultcode
B、request
C、requestcode
D、data
A、ActivityManager(活动管理器)管理各个应用程序生命周期以及通常的导航回退功能。
B、WindowManager(窗口管理器)管理所有的移动设备窗口功能。
C、ContentProvider(内容提供器)使得不同应用程序之间存取或者分享数据。
D、ViewSystem(视图系统)构建应用程序的基本组件。
A、should be provided
B、should not be provided
C、can be ignored
D、is considered a luxury
A.1个, 为(Sno, Cno)
B.1个,为(Sno, Cno, Tname)
C.2个,为(Sno, Sname, Cno) 和(Sno, Cno, Tname)
D.2个,为(Sno, Sname, Cno) 和(Shame, Cno, Tname)
Electronic mail, or mail, as it is known to its many fans, has been around for over two decades. Typically, email systems support five basic functions, as described below.(41)refers to the process of creating messages and answers.(42)refers to moving messages from the originator to the recipient.(43)has to do with telling the originator what happened to the message. Was it rejected? Was it lost?(44)incoming message is needed. So people can read their email.(45) is the final step and concerns what the recipient does with the message after receiving it.
A.Composition
B.Transfer
C.Reporting
D.Displaying
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!