单项选择题

According to the passage, electric response audiometry can be used ______.

A．whether a person is awake or asleep
B．only if a person is relaxed
C．particularly if a person hears a loud noise
D．particularly when a person is dreaming

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热门试题

单项选择题

The paragraph following this one would most likely deal with ______.

A．why some people can hear better than others
B．what can be done to help the hearing impaired
C．how this new auditory test is conducted
D．which hearing problems are the most severe

单项选择题

According to the passage, testing team at the University of Iowa is the first to ______.

A．develop a method to test hearing by way of the brain
B．determine the extent of brain damage in hearing-impaired persons
C．observe the reaction of the brain to a laboratory-controlled noise
D．study all the parts of brain-wave responses at the same time