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We have ____ friendly relations with many countries in the world.A、confirmedB、establish
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This letter is _____ our telephone conversation this morning.A、confirmedB、to confirmC、to
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【C18】A.thatB.whichC.whatD./
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【C6】A.pretendedB.fakedC.assumedD.copied
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【C20】A.allowedB.ensuredC.drivenD.committed
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Pauline failed to catch the flight because______.A.her ticket was not confirmedB.she booke
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下列物质中 ( )是目前已经肯定的必需脂肪酸。A C16:2B C18:2C C18:3D C20:3(E)C20:4