单项选择题

A．20
B．22
C．21
D．23
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单项选择题
A．A hotel.B．A supermarket.C．A city store.D．A fast food restaurant.
A．A hotel.
B．A supermarket.
C．A city store.
D．A fast food restaurant.
单项选择题
A．To allow several sails to be rigged.B．To add to the beauty of the basic design.C．To catch winds coming from over the hills.D．To allow the sails to be raised more quickly.
A．To allow several sails to be rigged.
B．To add to the beauty of the basic design.
C．To catch winds coming from over the hills.
D．To allow the sails to be raised more quickly.
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