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我国10kV电力系统（）系统。

A. IT
B. TT
C. TN-C
D. TV-S

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Which two are attributes of /SQL*Plus? （）

A. /SQL*Plus commands cannot be abbreviated.
B. /SQL*Plus commands are accesses from a browser.
C. /SQL*Plus commands are used to manipulate data in tables.
D. /SQL*Plus commands manipulate table definitions in the database.
E. /SQL*Plus is the Oracle proprietary interface for executing SQL statements.

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