单项选择题

A．Food processing.
B．Environmental protection.
C．Shopping habits.
D．Over-packaging problems.
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单项选择题
A．One needs to be careful with his goals.B．Sleepwalkers lack goals for success.C．Success is impossible without a goal.D．One’s goal in life is difficult to find.
A．One needs to be careful with his goals.
B．Sleepwalkers lack goals for success.
C．Success is impossible without a goal.
D．One’s goal in life is difficult to find.
单项选择题
A．Gold was discovered.B．The Transcontinental Railroad was completed.C．The Golden Gate Bridge was constructed.D．Telegraph communications were established with the East.
A．Gold was discovered.
B．The Transcontinental Railroad was completed.
C．The Golden Gate Bridge was constructed.
D．Telegraph communications were established with the East.
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