【28】A．variationB．balanceC．frequencyD．stability

The stability of a semisubmersible ship would be seriously reduced if flooding occurred in the （).

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[A] variation [B] balance [C] frequency [D] stability

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A．performanceB．securityC．satisfactionD．stability

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A．variationB．varietyC．varianceD．variable

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【C19】A．rateB．speedC．frequencyD．ratio

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【C7】A．variationB．varietyC．exchangeD．shift

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Careers in the public sector are more attractive because of their.A. greater stability

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