单项选择题

A．It uses nuclear energy.
B．It rests on a cushion of professional air.
C．It flies over magnetically activated tracks.
D．It uses a device similar to a jet engine.
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单项选择题
A．People’s health.B．People’s lives and futures.C．The end of the world.D．The Great Depression of 1929.
A．People’s health.
B．People’s lives and futures.
C．The end of the world.
D．The Great Depression of 1929.
单项选择题
A．She was asked to call the chairman’s wife.B．She was asked to make a copy of English final exam.C．She was asked to go to the chairman’s wife’s office.D．She 4vas asked to retake the final exam.
A．She was asked to call the chairman’s wife.
B．She was asked to make a copy of English final exam.
C．She was asked to go to the chairman’s wife’s office.
D．She 4vas asked to retake the final exam.
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