单项选择题

A．It is second-hand information and useless.
B．It is gathered from other sources rather than from its inhabitants.
C．It is from the arguments about the country.
D．It is different from what one had before the travel.
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填空题
Recognising broad categories of images is one of the general problems that computers are not______.
单项选择题
A．A scarcity of jobs in their field.B．Inadequate training in methods of biological research.C．Difficulties in classifying all of the varieties of owls.D．A lack of funding for their work with endangered species.
A．A scarcity of jobs in their field.
B．Inadequate training in methods of biological research.
C．Difficulties in classifying all of the varieties of owls.
D．A lack of funding for their work with endangered species.
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