皮皮学，免费搜题
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【单选题】
万向联轴器是属于( )联轴器。A.
非金属弹性元件
B.
金属弹性元件
C.
刚性可移式
D.
刚性固定式
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A.
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【简答题】Caee ysis: A Shanghai company signed a CIF contract to sell Christmas goods to a British company. The USD 1 million contract stipulated, "The seller guarantees that the goods arrive at the port of...
【简答题】A Shanghai company signed a CIF contract to sell Christmas goods to a British company. The $1 million contract stipulated, "The seller guarantees that the goods arrive at the port of destination by De...
【单选题】美国生物学课程研究所认为,生物学素养的高低是一个连续变化的过程,每个学生都处于这种连续变化的不同位置上,不同的位置,反映了他们对生物学理解的程度。其中,具有“学生能够理解生物学的概念体系,理解科学探究过程的知识和技能,能够用他们自己的话来解释概念。”的生物学素养是指:
A.
初步的生物学素养
B.
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D.
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