单项选择题

A． There are only three kinds of sleep disorder.
B． Everyone suffers from serious sleep disorders.
C． The disorders have confusing symptoms.
D． Doctors are now able to help people with sleeping problems.
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单项选择题
A． He thinks his job is pretty funny.B． He thinks his job is strange.C． He thinks he has a great job.D． He is sometimes embarrassed.
A． He thinks his job is pretty funny.
B． He thinks his job is strange.
C． He thinks he has a great job.
D． He is sometimes embarrassed.
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