通常所说的设备肯定配有() A.固定台座 。 B.动力设施 。 C.吊装设施 。 D.长途运输设施。
利用MediaPlayer 组件实现一个播放wav声音文件的播放器。用户可自己选择要打开的 wav文件,并在播放时有播放进度提示(如图)。首先在在窗体中添加1个MediaPlayer组件MediaPlayer1、1个标签组件Label1、2个按钮组件(“打开文件”-Button1,“退出”-Button2),1个时钟组件Timer1和1个OpenDialog组件OpenDialog1,一个gauge组件(用作播放进度显示)。进度提示条每隔0.1秒更新一次进度。将程序补充完整。 procedure TForm1.Button1Click(Sender: TObject); begin if OpenDialog1.Execute Then Begin MediaPlayer1.filename := OpenDialog1. (①) ; Label1.(②) := OpenDialog1.filename; MediaPlayer1.open; //打开声音文件 MediaPlayer1. (③) ; //开始播放 Timer1.enabled := (④) ; end; end; procedure TForm1.Timer1Timer(Sender: TObject); begin Timer1.Interval := (⑤) ; //每隔0.1秒更新一次进度 gauge1.maxvalue := MediaPlayer1.length; gauge1. (⑥) := MediaPlayer1.Position; //更改进度 end; procedure TForm1.Button2Click(Sender: TObject); begin close; end;
阀型避雷器主要分为()和()。
恶意透支
Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database. You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted. What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB?() Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDb.。 Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command.。 Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command.。 Take the USERDATA tablespace offline in ACCOUNTS_PDb.。
Which includes an activity to host a workshop that focuses on the identification and configuration of the actual network components (routers, servers, local-area network or LAN, and so on) that will be incorporated to run and support the Cisco Unified Communications system()