建筑给水排水及采暖工程的分项工程，应按（）等划分。
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You have enabled backup optimization for the RMAN environment. Identify two criteria on which RMAN will skip the file, if it has already been backed up.（） (Choose two.)
A. The data file backup is done with multiple channels
B. The data files is in the read-write mode after being backed up in the read only mode
C. The backup was taken after the data files was taken offline-normal or is in the read only mode
D. The data file backup complies with the back retention policy and the backup duplexing feature
贷记卡客户可通过哪些渠道进行激活（）
A. 手机银行
B. 电话银行
C. 网上银行
D. 柜面激活
固定式手部矫形器一般将手固定于功能位
A. 正确
B. 错误
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