单项选择题

Passage 2
Questions 30 to 32 are based on the passage you have just heard.

A．He was a nurse working in a hospital.
B．He was a medical doctor in a hospital.
C．He was a journalist for a newspaper.
D．He was a travel agent in San Francisco.
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单项选择题
A．We love to talk to ourselves about what we care about.B．We are influenced by what we actually feel.C．We are subjective about our own feelings.D．We are subject to our desires and frustrations.
A．We love to talk to ourselves about what we care about.
B．We are influenced by what we actually feel.
C．We are subjective about our own feelings.
D．We are subject to our desires and frustrations.
单项选择题
What discovery made live voice broadcasting become a reality
A．Carbon filament.
B．Diode.
C．Triode.
D．Wireless telegraph.
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