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EDGE是在无线链路上提高GSM/GPRS数据速率的一种方法。

A. 正确
B. 错误

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Which two statements are true about mouse button variables?（）

A. SYSTEMOUSE_BUTTON_PRESSED returns a string.
B. SYSTEMOUSE_BUTTON_PRESSED returns a numeric value. 1Z0-132 World Leaders In Certifications Material - Test-king.com
C. A possible value for SYSTEMOUSE_BUTTON_MODIFIERS is Control+Alt+Delete.
D. SYSTEMOUSE_BUTTON_MODIFIERS can only be references in form-level triggers.
E. SYSTEMOUSE_BUTTON_MODIFIERS identifies which special key was pressed in conjunction with the usual mouse button action.&e

由于机械波是由机械振动产生的，所以波长等于振幅。

A. 正确
B. 错误

火灾自动报警系统属于消防用电设备，其主电源应当采用（）。

A. 系统电源
B. 蓄电池
C. 消防电源
D. 自备电源

You are required to migrate your 11.2.0.3 database as a pluggable database (PDB) to a multitenant container database (CDB). The following are the possible steps to accomplish this task: 1. Place all the user-defined tablespace in read-only mode on the source database. 2. Upgrade the source database to a 12c version. 3. Create a new PDB in the target container database. 4. Perform a full transportable export on the source database with the VERSION parameter set to 12 using the expdp utility. 5. Copy the associated data files and export the dump file to the desired location in the target database. 6. Invoke the Data Pump import utility on the new PDB database as a user with the DATAPUMP_IMP_FULL_DATABASE role and specify the full transportable import options. 7. Synchronize the PDB on the target container database by using the DBMS_PDS.SYNC_ODB function. Identify the correct order of the required steps.（）

A. 2，1，3，4，5，6
B. 1，3，4，5，6，7
C. 1，4，3，5，6，7
D. 2，1，3，4，5，6，7
E. 1，5，6，4，3，2