单项选择题

A．Anesthetics.
B．Pulled teeth.
C．Home service.
D．Pain-free service.
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单项选择题
A．Almost one million.B．About 600 thousand.C．Nearly 400 thousand.D．Approximately 200 thousand.
A．Almost one million.
B．About 600 thousand.
C．Nearly 400 thousand.
D．Approximately 200 thousand.
单项选择题
A．The importance of good dental care.B．The use of medical discoveries of the Renaissance.C．The state of medicine before the Renaissance.D．The skills necessary for good dentistry.
A．The importance of good dental care.
B．The use of medical discoveries of the Renaissance.
C．The state of medicine before the Renaissance.
D．The skills necessary for good dentistry.
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