单项选择题

Which new service will be available to clients next

A．an on-line reservation system
B．a new company credit card
C．a 24-hour telephone helpline
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单项选择题
A．andB．butC．becauseD．as
A．and
B．but
C．because
D．as
单项选择题
Corporate Direct’s biggest clients are
A．financial service companies.
B．hotel and catering firms.
C．fashion retailers.
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