单项选择题

______ market research has shown that most Americans prefer environmentally-friendly products.

A．Nasty
B．Neat
C．Preliminary
D．Prior
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单项选择题
Some mushrooms are edible while others, which look almost identical, contain ______ poisons.
A．deadly
B．hasty
C．dizzy
D．gloomy
单项选择题
Inspector Marshall was ______ for his professional and caring attitude.
A．commended
B．committed
C．communicated
D．commuted
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