单项选择题

A．A standard unit for measuring weight.
B．How to care for precious metals.
C．The value of precious metals.
D．Using the metric system.
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单项选择题
A．The man should watch a different program.B．She’d like to watch television with the man.C．The man shouldn’t waste his time watching television.D．The television program doesn’t start until later in the evening.
A．The man should watch a different program.
B．She’d like to watch television with the man.
C．The man shouldn’t waste his time watching television.
D．The television program doesn’t start until later in the evening.
单项选择题
A．A druggist’s suggestion.B．An article.C．An advertisement.D．A sales clerk’s comment.
A．A druggist’s suggestion.
B．An article.
C．An advertisement.
D．A sales clerk’s comment.
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