单项选择题

Passage One
Questions 26 to 29 are based on the passage you have just heard.

A．The presence of a particular file.
B．The security level of the user.
C．A certain time or date.
D．The time when a file is used.
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单项选择题
A．By removing the bottom of the basket.B．By lowering the position of the basket.C．By simplifying the complex rules.D．By altering the size of the basket.
A．By removing the bottom of the basket.
B．By lowering the position of the basket.
C．By simplifying the complex rules.
D．By altering the size of the basket.
单项选择题
A．At the end of the online catalogue.B．At the Reference Desk.C．In The New York Times.D．In the Reader’s Guide to Periodical Literature.
A．At the end of the online catalogue.
B．At the Reference Desk.
C．In The New York Times.
D．In the Reader’s Guide to Periodical Literature.
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