单项选择题

A．Its size.
B．Its design.
C．Its sound quality.
D．Its brand.
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单项选择题
A．He never wasted money in his school days.B．He devoted himself to his studies.C．He was used to getting up early.D．He did well in both studies and work.
A．He never wasted money in his school days.
B．He devoted himself to his studies.
C．He was used to getting up early.
D．He did well in both studies and work.
单项选择题
A．The speakers would use too much power.B．The speakers would decrease the quality of the sound.C．The headphone would be a lighter replacement.D．The recording mechanism could take the place of speakers.
A．The speakers would use too much power.
B．The speakers would decrease the quality of the sound.
C．The headphone would be a lighter replacement.
D．The recording mechanism could take the place of speakers.
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