单项选择题

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

A. To entertain the workers.
B. To improve the relationship between the employer and employees.
C. To keep the workers calm and relaxed.
D. To increase production.
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单项选择题
A. Talk to other people who rent apartments in the same building. B. Make sure there are good locks on all the windows and doors. C. Check the water and electricity to see if they are working properly. D. Walk around the apartment building for dangerous signs.
A. Talk to other people who rent apartments in the same building.
B. Make sure there are good locks on all the windows and doors.
C. Check the water and electricity to see if they are working properly.
D. Walk around the apartment building for dangerous signs.
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