单项选择题

Remember to ask for a ______ of quality for these goods; otherwise they will not offer any maintenance.

A．certificate
B．receipt
C．warranty
D．mark
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单项选择题
______ emergency when you are in a lift, you can make a phone call for help.
A．In the event of
B．In the course of
C．In accordance with
D．In association with
单项选择题
His career has been an active one: ______
A．writing thrilling novels, editing for TV station and lecture in the State University
B．write thrilling novels, editing for TV station and lecturing in the State University
C．thrilling novel writer, editing for TV station and lecturing in the State University
D．writing thrilling novels, editing for TV station and lecturing in the State University
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