【C13】A．healthyB．junkC．ordinaryD．organic

【C13】A．organizationalB．organizationC．organizingD．organized

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【C13】A．ImmunityB．AddictionC．ExposureD．Reaction

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【C13】A．therebyB．maybeC．thanD．otherwise

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【C3】A．minorB．secondaryC．ordinaryD．inferior

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【C13】A．opportunitiesB．positionsC．companiesD．organizations

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【C10】A．effectiveB．sensitiveC．ordinaryD．careful

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OSI参考模型中的OSI表示的是（)。A.Organization Standard InstituteB.Organization Standard Inte

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