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【单选题】
102 Utility Theory:A.
considers the risk propensity of the decision makers.
B.
is based on proven statistical methods.
C.
deals with the usefulness of the end product.
D.
is a key element of ISO 9000
E.
B and C
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A.
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B.
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C.
is, an, a
D.
am, a, an
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