单项选择题

A．Archaeological
B．Biological.
C．Meteorological.
D．Sociological.
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单项选择题
A．By talking to an expert.B．By reading an article.C．By attending an exercise class.D．By listening to the radio.
A．By talking to an expert.
B．By reading an article.
C．By attending an exercise class.
D．By listening to the radio.
单项选择题
A．He uses a newer machine.B．His job is now done by a machine.C．He went on strike.D．His job was given to another worker.
A．He uses a newer machine.
B．His job is now done by a machine.
C．He went on strike.
D．His job was given to another worker.
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