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发布时间：2006-06-22 13:29     点击：

    (A) indignation  (B) impatience

    (C) pessimism  (D) indifference  (E) defiance

    22. The author mentions "common currency" in line 26 primarily in order to emphasize the

    (A) lack of differentiation among nerve impulses in human beings

    (B) similarity of the sensations that all human beings experience

    (C) similarities in the views of scientists who have studied the human nervous system

    (D) continuous passage of nerve impulses through the nervous system

    (E) recurrent questioning by scientists of an accepted explanation about the nervous system

    23. The description in lines 32-38 of an experiment in which electric stimuli were applied to different sen- sory fields of the cerebral cortex tends to support the theory that

    (A) the simple presence of different cortical areas cannot account for the diversity of mental experience

    (B) variation in spatiotemporal patterning of nerve impulses correlates with variation in subjec- tive experience

    (C) nerve impulses are essentially homogeneous and are relatively unaffected as they travel through the nervous system

    (D) the mental experiences produced by sensory nerve impulses are determined by the corti- cal area activated

    (E) variation in neuron types affects the quality of nerve impulses

    24. According to the passage, some evidence exists that the area of the cortex activated by a sensory stimu- lus determines which of the following?

    I. The nature of the nerve impulse

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