单项选择题

A．Workers.
B．Teachers.
C．Students.
D．Doctors.
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单项选择题
A．Most African Americans belong to lower wage groups.B．Asian Americans belong to a higher income group than white Americans.C．All the local Americans belong to the highest income group.D．Hispanic Americans earn more than African Americans.
A．Most African Americans belong to lower wage groups.
B．Asian Americans belong to a higher income group than white Americans.
C．All the local Americans belong to the highest income group.
D．Hispanic Americans earn more than African Americans.
填空题
usually
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