单项选择题

A．Londoners and the Thames.
B．The Clean Air Act.
C．Other measures.
D．The Clean Air Act and other measures.
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单项选择题
A．They get along successfully.B．They are in difficulties.C．They are divorced.D．They love each other dearly.
A．They get along successfully.
B．They are in difficulties.
C．They are divorced.
D．They love each other dearly.
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