单项选择题

A．A long stick with two wheels.
B．An individual transport vehicle.
C．A platform for people to stand on.
D．A device improving the speed of a plane.
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单项选择题
A．ThreeB．Five.C．Seven.D．Fifteen.
A．Three
B．Five.
C．Seven.
D．Fifteen.
单项选择题
A．To take off his legs.B．To show his ticket.C．To leave his bags behindD．To deposit his belongings
A．To take off his legs.
B．To show his ticket.
C．To leave his bags behind
D．To deposit his belongings
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