单项选择题
A．cite the case of a "primitive" or "barbaric" nation being distinguished from a "civilized" nation
B．provide an example of a state whose borders do not perfectly coincide with those of a nation
C．offer an example of the characteristics of a nation being applied to a particular area of the nation
D．present a case of a single region being treated by historiographers as representative of an entire nation
E．describe the case of a nation whose cultural and political identities distinguish it from a contiguous state
单项选择题 The author mentions all of the following as examples of complications arising from the application of spatial markers EXCEPT（）
单项选择题 Which of the following most accurately describes the passage（）
单项选择题 According to the passage, behavioral psychologists studying the extinction process have discerned which of the following（）