【摘要】 简化前人所用的贴近度；改正前人给出的一个灵敏度分析公式的不妥之处，且对它给出的所有灵敏度分析公式进行简化。通过引入作者提出的一种新属性（为“偏离型属性”）对前人给出的双基点法进行推广，是对前人结果的简化、改进和完善。更多还原

【Abstract】 The inappropriate sensitivity analysis formula previously given is corrected, and its sensitivity analysis formulas and the closeness to the ideal point are simplified.The Double Base Points method previously given is generalized by introducing a new kind of attribute (namely, "the deviating attribute".) given by the writer. The results abtained improve the previous results.更多还原