单项选择题


A．He is all right.
B．He is sick.
C．He is working in a hospital.
D．He is giving advice to someone.
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单项选择题
According to the passage, Pavlov worked with ______.
A．people
B．dogs
C．mental illness
D．abnormal behavior
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( ) 建筑面积 ( ) 土地使用证
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