单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．A lot of preparation is needed.
B．The size is very big.
C．Professors are always absent.
D．Students sit around a big table.
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填空题
Many people have weight loss surgery possibly because overweight may give rise to death.
单项选择题
A．To adopt a three-year policy.B．To provide subsidies.C．To create more job opportunities.D．To adopt a system of unemployment insurance.
A．To adopt a three-year policy.
B．To provide subsidies.
C．To create more job opportunities.
D．To adopt a system of unemployment insurance.
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