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【单选题】
You are maintaining the PROD database of NetFx Corporation. You set the value of the SQL_TRACE parameter to TRUE. What will be the impact of this setting？（）A.
The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the USER_DUMP_DEST directory.
B.
The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the USER_DUMP_DEST directory.
C.
The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the BACKGROUND_DUMP_DEST directory.
D.
The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the BACKGROUND_DUMP_DEST directory.
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【单选题】《城市居住区规划设计规范》中，城市居住区绿地率所包括的绿地范围是下列哪一项?( )
A.
公共设施绿地、道路绿地
B.
公共绿地、宅旁绿地、公共服务设施所属绿地
C.
公共绿地、宅旁绿地、公共服务设施所属绿地和道路绿地
D.
公共绿地、宅旁绿地和屋顶、晒台的人工绿地
【简答题】以下属浮动汇率制的国际货币体系是（ ）。
【单选题】PHP 的哪个 MySQL 函数用来创建结果集( )。
A.
mysql_select_db()
B.
mysql_query()
C.
mysql_connect
D.
mysql_fetch_row()