单项选择题

A．Once.
B．Twice.
C．Three times.
D．Never.
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单项选择题
A．Future happiness is attractive,B．The man shouldn’t work too hard for the happiness of future.C．The man should retire early.D．Today’s happiness is less important than tomorrow’s.
A．Future happiness is attractive,
B．The man shouldn’t work too hard for the happiness of future.
C．The man should retire early.
D．Today’s happiness is less important than tomorrow’s.
单项选择题
A．It has become a clumsy giant.B．The city has suffered from lung-time famine.C．There was an epidemic disease that time.D．It has been set on fir
A．It has become a clumsy giant.
B．The city has suffered from lung-time famine.
C．There was an epidemic disease that time.
D．It has been set on fir
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