单项选择题

A．Lawyer and client.
B．Teacher and student.
C．Doctor and patient.
D．Librarian and student.
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单项选择题
Diabetes is rare among the Greenland Inuit.
A．Y
B．N
C．NG
单项选择题
A．Blood levels.B．Living condition.C．Life style.D．Blood pressure.
A．Blood levels.
B．Living condition.
C．Life style.
D．Blood pressure.
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