单项选择题

A．On roads.
B．On lakes.
C．On rivers.
D．Both B and C.
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单项选择题
A．An old industrial center.B．A famous university town.C．A well-known university.D．A newly dcveloped town.
A．An old industrial center.
B．A famous university town.
C．A well-known university.
D．A newly dcveloped town.
单项选择题
A．Its variety of colors.B．The way it is sold.C．Its unusual texture.D．Its main ingredient.
A．Its variety of colors.
B．The way it is sold.
C．Its unusual texture.
D．Its main ingredient.
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