【单选题】下述试验中,不能测病毒蛋白的方法是( )
【判断题】Externality means Pareto inefficiency.
【单选题】对于微生物含量较少的水样,应采用哪种计数方法?( )。
【单选题】If our model of rent control allowed for unrestricted subletting, would the outcome be Pareto efficient?
【单选题】VThe Pareto Principle is a technique used to determine which quality control problems in a particular process should be corrected. Which of the following statements best represents the philosophy empl...
B.
. the majority of defects are caused by a small percentage of the identifiable problems. Improvement efforts should be reserved for these vital problems.
C.
. in order to achieve zero defects, all quality control problems, including those which do not have a direct financial cost should be corrected.
D.
. generally, 80% of the quality control problems are justifiable for correction via cost-benefit analysis. The remaining 20% are not financially worthy of improvement efforts.
【单选题】卷积积分:t【u(t)-u(t-2)】*δ(1-t)=()
【单选题】帕累托前沿 Pareto frontier 是( )
B.
所有帕累托最优解Pareto Optimal Solution的组合
【简答题】计算下列信号的卷积积分。 f1(t)=e-2tu(t),f2(t)=u(t)