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贷记卡交易明细出现（）即表示该卡当月已逾期。

A. 利息
B. 滞纳金
C. 超限费

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川乌炮制降毒的程度，取决于双酯型生物碱的水解程度。

A. 正确
B. 错误

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You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command. Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?（）

A. Restore the backup control file and open the database with RESETLOGS option.
B. Perform point-in-time recovery because flashback cannot be performed again on this table
C. Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571
D. Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571

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单相制零线的截面，（）。

A. 不应小于相线截面的30%
B. 不应小于相线截面的50%
C. 不应小于相线截面的80%
D. 应与相线的截面相同

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（）转向架最能有效控制空气弹簧高度。

A. S220K型
B. C200K型
C. A96型
D. P200K型

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贷记卡交易明细出现（）即表示该卡当月已逾期。

A. 利息 B. 滞纳金 C. 超限费

川乌炮制降毒的程度，取决于双酯型生物碱的水解程度。

单相制零线的截面，（）。

（）转向架最能有效控制空气弹簧高度。

A. 利息
B. 滞纳金
C. 超限费