单项选择题

A．unbiasedness
B．unbiased
C．biased
D．bias
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单项选择题
What can you infer from the dialogue
A．The visitor will see very little of the city.
B．The visitor’s schedule is tight.
C．The visitor will enjoy his time.
D．The visitor will leave for another city the next day.
单项选择题
What is the man’s main purpose in talking to the woman
A．To notify her of her promotion.
B．To inform her of new equipment.
C．To inquire about office problems.
D．To discuss meetings of the board.
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