【C4】A．directionB．guideC．symbolD．model

A．pursueB．guideC．aimD．direct

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A．guideB．modelC．symbolD．direction

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【C13】A．directionB．distributionC．distractionD．contraction

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Many people like white color as it is a _______ of purity.A. signB. signalC. symbolD.

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【C5】A．signalB．demonstrationC．symbolD．indication

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The Unified Modeling Language is a standard graphical language for modeling object－orient

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下列字符序列中 不可用作C语言标识符的是______。A.b70B.#abC._symbolD.al

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