单项选择题

A．Promoting the ad service to other companies.
B．Placing ads for other companies on their site.
C．Selling their products through this online ad store.
D．Selling information to other companies.
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单项选择题
A．Sometimes a certain amount of stress is positive.B．Too much stress may result in health problems.C．Exercise is one of the most effective ways to relieve stress.D．You should not say No lo extra work.
A．Sometimes a certain amount of stress is positive.
B．Too much stress may result in health problems.
C．Exercise is one of the most effective ways to relieve stress.
D．You should not say "No" lo extra work.
单项选择题
A．She has to work harder.B．She has to control her spending.C．She has to take a part-time job.D．She has to ask her parents for money.
A．She has to work harder.
B．She has to control her spending.
C．She has to take a part-time job.
D．She has to ask her parents for money.
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