单项选择题


Questions 23 to 25 are based on the conversation you have just heard.

A．She is a medical expert.
B．She knows nothing about the regulations of medicine advertisement.
C．She will have to think of new ideas.
D．The man appreciates her work very much.
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填空题
The effect of the people in dangerous mask being scolded has become less serious over the past two years.
单项选择题
A．0.7 percent.B．0.9 percent.C．20 percent.D．80 percent.
A．0.7 percent.
B．0.9 percent.
C．20 percent.
D．80 percent.
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