多项选择题

For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)

A. views
B. fixed tables
C. heap tables
D. external tables
E. temporary tables
F. index-organized tables (IOT)

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1Z0-053

For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)