单项选择题

A．Salesman and customer.
B．Doctor and nurse.
C．Doctor and patient.
D．Patient and patient.
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单项选择题
Real essay is confined to only English literature.
A．Y
B．N
C．NG
单项选择题
A．The differences between sheep and cattle breeding.B．Living conditions in the colony of Massachusetts.C．Food shortages in the early 1800s.D．Livestock raising on early American farms.
A．The differences between sheep and cattle breeding.
B．Living conditions in the colony of Massachusetts.
C．Food shortages in the early 1800s.
D．Livestock raising on early American farms.
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