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In an Oracle 10g database， the in-memory statistics are gathered at regular intervals and used to perform growth-trend analysis and capacity planning of the database. Which component stores these statistics？（） 
A:recovery catalog
B:Oracle Enterprise Manager Repository
C:Automatic Workload Repository （AWR）
D:Oracle 10g Enterprise Manager Grid Control
E:Automatic Database Diagnostic Monitor （ADDM）

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出自：Oracle认证

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