单项选择题

Questions 22～25 are based on the following telephone interview. What is the conversation mainly about

A．How to care for precious metals.
B．A standard unit for measuring weight.
C．The value of precious metals.
D．Using the metric system.
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单项选择题
Labor force is composed of ______.
A．people who are available to work and earn income
B．self-employed people only
C．only those who are looking for an employment
D．only the employees
单项选择题
According to the woman, what governs the clothes we wear
A．A desire to express oneself and display one’s wealth.
B．Individual taste and love for beauty.
C．Love for beauty and a desire to impress other people.
D．Individual taste and a desire to express oneself.
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