单项选择题

How long have the woman been working in the lab

A．Basic research.
B．Develop new products.
C．The dialogue doesn’t tell us.
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单项选择题
A．In an office.B．On the street.C．On the phon
A．In an office.
B．On the street.
C．On the phon
单项选择题
A．His wife wanted the bed.B．Ordinary beds were too short for him.C．Ordinary beds were not comfortable enoug
A．His wife wanted the bed.
B．Ordinary beds were too short for him.
C．Ordinary beds were not comfortable enoug
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