单项选择题

A．$50.
B．$30.
C．$20.
D．$10.
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单项选择题
A．A car outside the supermarket.B．A car at the bottom of the hill.C．Paul’s car.D．The sports car.
A．A car outside the supermarket.
B．A car at the bottom of the hill.
C．Paul’s car.
D．The sports car.
单项选择题
Web 2.0 is the best way to function as both a browser and a programming system.
A．Y
B．N
C．NG
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