单项选择题

A．He is looking at something that the woman showed him.
B．He is cooking in the kitchen.
C．He is reading.
D．He is getting into the kitchen.
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单项选择题
A．A system which trains computer experts.B．A system which trains doctors.C．A group of experts who can provide professional advice.D．A computer program which can provide professional advice.
A．A system which trains computer experts.
B．A system which trains doctors.
C．A group of experts who can provide professional advice.
D．A computer program which can provide professional advice.
单项选择题
A．Scholars.B．Scientists.C．Greeks.D．Divers.
A．Scholars.
B．Scientists.
C．Greeks.
D．Divers.
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