单项选择题

A．The first period of cold, wintry days in autumn.
B．The turning of color and falling of leaves.
C．A large mass of warm tropical air carried northward.
D．The southwestern winds.
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单项选择题
A．She has recently gone there.B．It’s not a very good one.C．There’ s one in her home town.D．It will be closed when she’s fre
A．She has recently gone there.
B．It’s not a very good one.
C．There’ s one in her home town.
D．It will be closed when she’s fre
单项选择题
A．America.B．England.C．Switzerland.D．Sweden.
A．America.
B．England.
C．Switzerland.
D．Sweden.
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