单项选择题

Which of the following is NOT mentioned in the passage

A．RSVP.
B．COB
C．IRS.
D．AT.

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单项选择题

ASAP, which is often heard in business office, means ______.

A．the work must be finished by close of business
B．the work must be finished by the end of the workday
C．the work must be finished as soon as possible
D．the work must be finished at once

单项选择题

What is the main subject of this article

A．The voice of America.
B．A short way of saying.
C．Introduction of famous companies.
D．Brief introduction of VOA

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