电子式压力传递仪的原理是:() 差动静电容式。 力平衡式。 变位平衡式。
You want the user APP_DBA to administer the Oracle database from a remote machine. APP_DBA is granted the SYSDBA privilege to perform administrative tasks on the database. Which file is used by the Oracle database server to authenticate APP_DBA?() control file。 password file。 listener controller file。 control file and password file。
异步电动机软启动器主要用于()。 异步电动机调速控制。 异步电动机调压调速控制。 异步电动机变频调速控制。 异步电动机启动控制。
You are the Database Administrator (DBA) of your company. You execute the following statement on an Oracle 10g instance: SQL> ALTER SYSTEM SWITCH LOGFILE; Which two tasks are performed when the statement is executed? () The DBWn process writes to the datafile.。 Changes in the background process are recorded.。 The log file is updated with the current SCN number.。 The System Change Number (SCN) is recorded in the control file.。 The changes to the listener configuration in the listener.ora file are recorded.。
关于物流中心与配送中心的区别,下列正确的是() 物流中心功能较为全面。 配送中心规模一般较大。 配送中心服务于少量供应商。 物流中心通常提供第三方物流服务。
经加固补强并经设计和监理单位鉴定能达到设计要求时,其质量评,()。