单项选择题

The______ of rain forests may hamper a developing country in its fight against poverty.

A．reservation
B．preservation
C．conservation
D．compensation
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单项选择题
Since pollution became a concern in the 1950s, experts have predicted wrongly that the car was about to end.
A．boost
B．boom
C．production
D．prosperity
单项选择题
The President fumed at questions of whether the nuclear summit and surrounding meetings were tailored to his political______.
A．admiration
B．ambitions
C．administration
D．affections
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