单项选择题

A．In a factory.
B．In a flower shop.
C．In a heating plant.
D．In a locked room.
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单项选择题
A．Tuesday.B．Friday.C．Saturday.D．Sunday.
A．Tuesday.
B．Friday.
C．Saturday.
D．Sunday.
单项选择题
Special words used in technical discussion ______.
A．never last long
B．are considered artificial language speech
C．should be confined to scientific fields
D．may become part of common speech
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