单项选择题

A．A Rolex.
B．A Bulova.
C．A Seiko.
D．An Elgin.
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单项选择题
A．Many species have moved further north.B．Many species have come into existence.C．Many species have developed a habit of migration.D．Many species have become less sensitive to climate.
A．Many species have moved further north.
B．Many species have come into existence.
C．Many species have developed a habit of migration.
D．Many species have become less sensitive to climate.
单项选择题
Korea attributes its improved economy to the use of knowledge and more investment and workers.
A．Y
B．N
C．NG
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