单项选择题


Questions 19 to 21 are based on the conversation you have Just heard.

A．He hiked along the Colorado River.
B．He explored the Colorado River.
C．He camped along the Colorado River.
D．He visited the Colorado city.
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单项选择题
What does the author imply by saying rewards cards can be a useful option for the savvy consumer
A．Reward cards are helpful when people know them totally well.
B．Reward cards are useful only when people purchase with them.
C．The value of the card will vanish from month to month in short time.
D．Rewards cards will serve people with comfort and convenience.
单项选择题
Why the constant bombardment of information about food is bad for people who have the eating disorder orthorexia nervosa
A．Because they will follow the information seriously.
B．Because they will aim to become thinner.
C．Because they won’t make suitable plans.
D．Because they won’t enjoy eating.
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