下列选项中（）不属于《中华人民共和国著作权法》中所指的作品。
A. 通用公式
B. 杂技作品
C. 口述的作品
D. 地图、示意图等图形作品
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采用硅整流电容储能装置直流系统时，断路器直流回路接线有什么要求？
液体在管路中流动时的能量损失有（）（水头）损失和（）（水头）损失。
请简述曹操杀粮官王垕（hòu）的故事（曹操一生多用“借”，借天子以令诸侯，借诸侯以令诸侯，那么“借头”所谓何事？）（17回）
You executed the following SQL statement to shrink the EMPLOYEES table segment stored in the EXAMPLE tablespace: ALTER TABLE employees SHRINK SPACE CASCADE; Which statement is correct in this scenario?（）
A. The EMPLOYEES table will be changed to read-only mode during the shrink operation.
B. The indexes created on the EMPLOYEES table will need to be rebuilt after the shrink operation is over.
C. The shrink behavior will be cascaded to all dependent segments of the table that support a shrink operation.
Data manipulation language (DML) operations will not be possible on the EMPLOYEES table during the COMPACTION phase of the shrink operation.
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