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燃烧器的联焰管有何作用？

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Which of the following are correct about block media recovery？（）

A. Physical and logical block corruption is recorded automatically in V$DATABASE_BLOCK_ CORRUPTION
B. Logical corruptions are repairable by BMR
C. Physical corruptions are repairable by BMR
D. RMAN can use any backup for a BMR restore
E. ARCHIVELOG mode is not required if you have both a full and incremental backup for restore

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凡为达到供电企业规定的电网高峰符合时功率因数的新装客户，供电企业可拒绝接电。

A. 正确
B. 错误

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TD-SCDMA系统，主载频和辅载频的上下行转换点如配置不一致，会导致严重的（）干扰。

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行李运价里程，按（）计算，旅客要求行李由近径路运送时，如（）可按近径路计算。

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