单项选择题

A．To stress the role of dirt.
B．To introduce the history of dirt.
C．To call attention to the danger of dirt.
D．To present the change of views on dirt.
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单项选择题
A．It achieved huge success. B．It won the first Tony Award. C．It was warmly welcomed by salesmen. D．It was severely attacked by dramatists.
A．It achieved huge success.
B．It won the first Tony Award.
C．It was warmly welcomed by salesmen.
D．It was severely attacked by dramatists.
填空题
F
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