单项选择题

A．A system which trains doctors.
B．A group of experts who can provide professional advice.
C．A computer program which can provide professional advice.
D．A system which trains computer experts.
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单项选择题
A．Her husband was taking her out to the theater.B．Her husband had got her a job in his office.C．Her husband was going to buy her some nice gifts.D．Her husband had found his lost money.
A．Her husband was taking her out to the theater.
B．Her husband had got her a job in his office.
C．Her husband was going to buy her some nice gifts.
D．Her husband had found his lost money.
单项选择题
A．February.B．April.C．August.D．November.
A．February.
B．April.
C．August.
D．November.
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