单项选择题

A．He has learned a lot from his own mistakes.
B．He is quite experienced in taming wild dogs.
C．He finds reward more effective than punishment.
D．He thinks it important to master basic training skills.
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单项选择题
A．He was fined for running a red light.B．He was caught speeding on a fast lane.C．He had to run quickly to get the ticket.D．He made a wrong turn at the intersection.
A．He was fined for running a red light.
B．He was caught speeding on a fast lane.
C．He had to run quickly to get the ticket.
D．He made a wrong turn at the intersection.
单项选择题
It can be inferred from the passage that doctors are able to determine hospital policies because______.
A．it is doctors who generate income for the hospital
B．a doctor is ultimately responsible for a patient’’s health
C．most of the patient’’s bills are paid by his health insurance
D．some patients might refuse to accept their physician’’s advice
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