单项选择题

A．Someone spilled water on it.
B．Someone lost it.
C．It was made of low quality metal.
D．The standard for measuring had changed.
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单项选择题
A．Diners existed before fast-food restaurants.B．The menu included more food than sandwiched and coffee.C．Burger King is a fast-food restaurant.D．Sandwiches became bigger.
A．Diners existed before fast-food restaurants.
B．The menu included more food than sandwiched and coffee.
C．Burger King is a fast-food restaurant.
D．Sandwiches became bigger.
单项选择题
A．We can do without railways.B．Trains have much in common with motorcars and planes.C．Motorcars and planes are not as good as trains.D．Trains are as good as motorcars and planes.
A．We can do without railways.
B．Trains have much in common with motorcars and planes.
C．Motorcars and planes are not as good as trains.
D．Trains are as good as motorcars and planes.
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