问答题 Fill in the blank with one of the words given below. Change the form where necessary. marginal diversify project dispatch transformation infrastructure advocate retrieve deploy fluctuate The company is reconsidering the way in which it ___________ its resources.
多项选择题 7、GB150内压圆筒强度计算的安全系数为_________________。 A、屈服强度安全系数取1.5 B、屈服强度安全系数取1.6 C、抗拉强度安全系数取3 D、抗拉强度安全系数取2.7
单项选择题 平差课程从统计学视角，认识（看待）误差的随机特性-Δ=L~N(μ,σ2) ？（ ）