单项选择题

Many firms give away small quantities of their products as ______ so that people can try them before buying.

A．examples
B．models
C．samples
D．exhibits
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单项选择题
In Britain today women ______ 44% of the work force, and nearly half of the mothers with children are in paid work
A．build up
B．make up
C．stand for
D．conform to
单项选择题
A．In a post office. B．In a middle school. C．In a bank. D．In a hospital.
A．In a post office.
B．In a middle school.
C．In a bank.
D．In a hospital.
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