A.cradleB.angleC.eagleD.stable
A. cradle
B. angle
C. eagle
D. stable
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对某轴径进行等精度测量9次，由所有测量值求出的单次测量值标准偏差为0.002mm。试写出测量列中的测量值28.256
A.proverbB.sayingC.mottoD.logo
A. proverb
B. saying
C. motto
D. logo
为了保证圆柱齿轮传动的使用要求，试述齿轮箱体上支承相互啮合齿轮的两对轴承孔的公共轴线间应规定的相互位
It can be inferred from the passage that________．
A. medical community’s adovacy pushes opoid misuse
B. doctor is the chief criminal for opoid abuse
C. many opoids are prescribed for nonmedical use
D. the slow progress of FDA’S will leave many patients victims of medical accidents
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