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符合药典要求，能用于人体进行诊断及治疗的放射性化合物及生物制剂称为_________。

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教室黑板应设局部照明灯，其平均垂直照度不应低于（），照度均匀度不应低于0.7。

A. 150LX
B. 200LX
C. 220LX
D. 360LX

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青岛公积金二次贷款首付最低多少？贷款利率是多少？

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何谓共晶反应、包晶反应？试比较这两种反应的异同点。

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You database is running an ARCHIVELOG mode. The following parameter are set in your database instance: LOG_ARCHIVE_FORMAT = arch+%t_%r.arc LOG_ARCHIVE_DEST_1 = ‘LOCATION = /disk1/archive’ DB_RECOVERY_FILE_DEST_SIZE = 50G DB_RECOVERY_FILE = ‘/u01/oradata’ Which statement is true about the archived redo log files?（）

A. They are created only in the location specified by the LOG_ARCHIVE_DEST_1 parameter.
B. They are created only in the Fast Recovery Area.
C. They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and in the default location $ORACLE_HOME/dbs/arch.
D. They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the location specified by the DB_RECOVERY_FILE_DEST parameter.

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