【C19】A．spareB．rareC．freeD．loose

【C17】A．rawB．rareC．rowD．roar

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A．randomB．rareC．regularD．rough

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They started off late and got to the airport with minutes to ______.A．spareB．catchC．leaveD

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It is likely for them to find the rules by themselves.A.hardlyB.rareC.friendlyD.possible

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【C4】A．spareB．changeC．shareD．borrow

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The escaped prisoner is still _____ .A.wonderingB.arrestingC.at freeD.at large

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用SQL语句建立表时将属性定义为主关键字 应使用短语 ______。A.CHECKB.PRIMARY KEYC.FREED.UNIQUE

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