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 U.N. came into existence fully in _____.

A．1942
B．1944
C．1940
D．1945

单项选择题

The essential functions of the U. N._______.

A．are limited to discussions and debates
B．include co-ordinating actions where necessary
C．are only concerned with human rights
D．are economic and culture