单项选择题

A．They have been replaced by electric trains.
B．They have been used for special railway service.
C．They have become more comfortable.
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单项选择题
A．Milk.B．Hamburgers.C．Magazines.
A．Milk.
B．Hamburgers.
C．Magazines.
单项选择题
A．In the northeast of England.B．In London.C．In the southeast of England.
A．In the northeast of England.
B．In London.
C．In the southeast of England.
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