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17碳钢制成圆截面轴，如果θ≥[θ]，为保证此轴的扭转刚度，采用措施（ ）最有效。
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17碳钢制成圆截面轴，如果θ≥[θ]，为保证此轴的扭转刚度，采用措施（ ）最有效。
A、)
B、)
C、)
D、)
时间：2021-09-08 14:07
关键词：
和学
华北水利
土木工程
材料力学
答案解析
C
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一般地，如果总体分布中未知参数θ可供选择的估计有θ₁，…，θ，对于任意x，恒有p（x，θ）≥p（x，θ）成立，θ是待估参数θ的（）
17碳钢制成圆截面轴，如果θ≥[θ]，为保证此轴的扭转刚度，采用措施（ ）最有效。
一般地，如果总体分布中未知参数θ可供选择的估计有∧ ∧∧θ,……，θk,对于任意x，恒有p(x,θ)≥p(x,θ)。其中∧ ∧∧ ∧ ∧θ,……，θk中的某一个，θ是异于θ的θ,……，θk任 ∧计，θ称为待估参数θ的（）
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