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习题二 某企业历史运输车辆维修费的资料见下表: 年 业务量(行驶千公里) 维修费 1 220 8800 2 210 8700 3 205 8680 4 202 8670 5 200 8660 6 195 8620 7 190 8600 8 180 8560 9 170 8360 10 160 8400 要求: (1)用高低点法将维修费(混合成本)分解为变动成本和固定成本两部分,并写出成本公式如下: a=A.
7332.6
B.
6600
C.
7960
D.
2400
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【简答题】What is the Affinity Chromatography?
【单选题】Two proteins bind to the same ligand, and protein A has half of its binding sites occupied when the ligand concentration is 0.5 mM, while protein B has half of its binding sites occupied when the liga...
A.
Protein A binds more strongly, and K d = 0.3 mM.
B.
Protein A binds more strongly, and K d = 0.5 mM.
C.
Protein B binds more strongly, and K d = 0.3 mM.
D.
Protein B binds more strongly, and K d = 0.5 mM.
E.
Both proteins bind the ligand with the same affinity, and K d = 0.4 mM.
【单选题】What is the primary Realist explanation for the US-Israel alliance?
A.
Cultural affinity
B.
A shared history of immigration
C.
Geo-strategic calculations
D.
None of the above
【简答题】求cos70 cos10 +sin70 sin10
【简答题】sin70 °, cos70 °, tan70 °的大小关系是 。
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