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【单选题】
Definition of I ntermediate Filament ( )A.
It is a major site in which t he γ-tubulin s combine with several other associated proteins to act as a scaffold for α - β tubulin dimers during the nucleation process .
B.
It is a cytoskeletal component composed of a family of related proteins sharing common structural and sequence features , which are cytoplasmic and nuclear localization .
C.
It is composed of a double-helical polymer of the protein actin, and play s a key role in virtually all types of contractility and motility within cells.
D.
It comprise s a superfamily of ATP -dependent motor proteins which are responsible for actin -based motility.
E.
It is composed of three distinct types of fibrous structures: microtubules, intermediate filaments, and microfilaments, which participate in a number of cellular activities.
F.
It is a protein belonging to a class of motor proteins found in eukaryotic cells . Most of them walk towards the positive /minus end of a microtubule .
G.
It is a family of cytoskeletal motor proteins that move toward the microtubules' plus end .
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【单选题】下列关于资产减值的说法中，正确的有()。
A.
固定资产减值损失一经计提，在以后会计期间不得转回
B.
存货跌价准备一经计提，在以后会计期间不得转回
C.
应收账款坏账准备一经计提，在以后会计期间不得转回
D.
交易性金融资产计提的减值损失如果在随后会计期间影响原计提减值损失的因素消失，其减值损失可以转回
【简答题】请拍摄黄鳝血细胞镜检结果, 显微照片制作成电子版的实验结果,提交至网络教学平台 《 遗传学实验 》 作业中。
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