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．A diet of eating only salads.B．A diet of very careful eating habits.C．A diet with lots of sweets.
A．A diet of eating only salads.
B．A diet of very careful eating habits.
C．A diet with lots of sweets.
单项选择题
A．It’s Carol’s turn to bake one.B．He doesn’t know when Carol baked it.C．He would like to taste it.
A．It’s Carol’s turn to bake one.
B．He doesn’t know when Carol baked it.
C．He would like to taste it.
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