单项选择题

A．weapon-grade material.
B．nuclear fuel.
C．plutonium.
D．spent fuel.
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单项选择题
A．fly-drive holiday.B．car-trip.C．two-city holiday.D．conducted tour.
A．fly-drive holiday.
B．car-trip.
C．two-city holiday.
D．conducted tour.
填空题
personality shyness
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