________ the grandparents love the children, they are strict with them. A.While B.As C.Since D.Because
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【简答题】Under the FOB term, in order to indicate who shall bear the loading expenses, the variations of FOB are used. They are ______, ______, ______ and ______.
【判断题】The root locus provides the control system designer with a measure of the sensitivity of the poles of the system to variations of a parameter of interest.