单项选择题


Where can diamonds be round

A．In the valley.
B．On the floor of the rivers.
C．In the narrow volcano pipes.
D．On the top of the mountains.
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单项选择题
What makes the Routemaster famous
A．It is full of renaissance favor.
B．It is a star in a famous movie.
C．It is one of the tourist hot spots.
D．It is a symbol of London.
单项选择题
Why 1s part of the bark cut away
A．To clear up the eggs of insects.
B．To help trees deliver water.
C．To look for the signs of insects.
D．To prepare for cutting down trees.
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