单项选择题

People waiting at an airport______.

A．enjoy hearing airplanes taking off and landing
B．are usually not troubled hy the noise
C．can easily tell sound from noise
D．are often physically affected by the noise

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热门试题

单项选择题

People enjoy listening to music,______.

A．though they are receiving a lot of decibels of sound in fact
B．because it does not have any negative effect
C．because they do not have to tolerate the noise around them
D．even though it is sometimes unpleasant hearing strange sounds

单项选择题

By all men are created equal , the authors of the Declaration of Independence meant that______.

A．black slavery and racism should be removed
B．people of their own class are all created equal
C．all people in the world should be free from colonialism
D．people have the rights to overthrow an unjust government