单项选择题

All of the following are solutions employed to prevent noise pollution EXCEPT ______.

A．utilizing insulation and sound proofing devices
B．reducing the sources of noises
C．wearing ear protection
D．planting more trees to absorb the noise
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单项选择题
Which element determines the harm brought by the noise pollution
A．Frequency and intensity of the sound.
B．The time the pollution lasts.
C．The density of the population.
D．The quality of the sound.
单项选择题
In France, what is the common thing in finding a partner for both sexes
A．They place more emphasis on appearance.
B．They both seek the romance than real life.
C．They'd like to attend parties, bars and clubs to meet someone.
D．They pay more attention to financial status.
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