【单选题】当附着式升降脚手架停用超过( )个月或遇 6 级及以上大风后复工时,应进行检查,确认合格后方可使用。
【判断题】泛化能力是指训练好的分类器对已知样本的正确分类能力。
【判断题】平均数显著性检验是指研究样本的总体与已知总体差异是否显著的假设检验。()
【单选题】The type of contract (payment mechanism) chosen for a project is often a reflection of the degree of risk associated with completing that project. For a firm fixed price contract, payment for risk ___...
B.
Is accomplished by paying the actual costs to the contractor. B Is accomplished by paying the contractor for his costs plus a fixed fee (profit).
C.
Is an undisclosed contingency in the contractor's bid.
D.
Is accomplished by paying for the budgeted costs of dealing with risks, as predicted in the project risk assessment.
【单选题】20 世纪 50 年代末出现的人工智能技术,它不包括下列哪一项。