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A．air-conditioners
B．closed-circuit TV
C．projectors
D．tape-recorders
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A．sevenB．elevenC．fifteenD．seventeen
A．seven
B．eleven
C．fifteen
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A．EUB．UN Security CouncilC．International Atomic Energy AgencyD．UN General Assembly
A．EU
B．UN Security Council
C．International Atomic Energy Agency
D．UN General Assembly
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