相对标高的零点正确的注写方式为（）。 ±0.000。 -0.000。 +0.000。 无特殊要求。
A developer calls and reports that he accidentally dropped an important lookup table from a production database. He needs the table to be recovered. What action would you take？（） Initiate an incomplete recovery operation using RMAN.。 Copy the table from a development database.。 Advise the user to rekey the data.。 Perform a Flashback Drop operation.。 Perform a Flashback Recovery operation.。
A user uses both a Microsoft Windows Mobile 5.0 Smartphonebased device and a Microsoft Windows Mobile 5.0 Pocket PC Phone Edition device for Over-The-Air （OTA） e-mail. Both devices have Microsoft Messaging and Security Feature Pack installed. A remote wipe command is issued against the Pocket PC device. The user reconfigures the ActiveSync settings on the Pocket PC device. When the user attempts synchronization， the device hard-resets again. You need to ensure that the user can synchronize the Pocket PC device. What should you do？（） Cancel the remote wipe issued against the Pocket PC device.。 Instruct the user to configure only one device for ActiveSync.。 Instruct the user to perform a soft-reset of the Pocket PC device.。 Instruct the user to perform a manual hard-reset of the Pocket PC device.。
有核心主导的创业团队与群体性的创业团队相比较（）。 先有创业点子再有创业团队。 先有创业团队的结识才有创业点子的提出。 更强调人际关系在创业团队构成中所扮演的角色。 团队的稳定性较强。 团队的稳定性更弱。
细胞内的钙有结合钙和离子钙两种形式，二者都具有生理活性。
You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）
