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【判断题】
学习任务是自主学习任务单的主体部分。A.
正确
B.
错误
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【多选题】根据中国农业发展银行《信贷全流程标准化管理操作手册（2017年修订版）》，关于销售/出租/提供服务等产生的应收账款质押审查要求的下列表述正确的是（）。
A.
应收账款据以产生的债权合同由出质人与应收账款债务人签订，有合同双方当事人签章
B.
征信系统查询报告查询时间在调查评估期间之外
C.
出质人承诺向中国农业发展银行提交的每笔应收账款债权真实合法有效、没有超过诉讼时效、没有被用作任何形式的担保
D.
应收账款债务人承诺未经中国农业发展银行事先书面同意，不得擅自变更债权合同内容
【多选题】What are the structure and function of intermediate filaments?
A.
Intermediate filaments have great strength, and their main function is to enable cells to withstand the mechanical stress that occurs when cells are stretched. The filaments are called “intermediate” because, in the smooth muscle cells where they were first discovered, their diameter (about 10 nm) is between that of the thinner actin filaments and the thicker myosin filaments.
B.
Intermediate filaments are the toughest and most durable of the cytoskeletal filaments: when cells are treated with concentrated salt solutions and nonionic detergents, the intermediate filaments survive, while most of the rest of the cytoskeleton is destroyed.
C.
Intermediate filaments are found in the cytoplasm of most animal cells. They typically form a network throughout the cytoplasm, surrounding the nucleus and extending out to the cell periphery. There, they are often anchored to the plasma membrane at cell–cell junctions called desmosomes, where the plasma membrane is connected to that of another cell.
D.
Intermediate filaments are also found within the nucleus of animal cells. There, they form a meshwork called the nuclear lamina, which underlies and strengthens the nuclear envelope. In this section, we see how the structure and assembly of intermediate filaments makes them particularly suited to strengthening cells and protecting them from tearing.
【单选题】GDP does not directly include intermediate goods because
A.
intermediate goods are not valuable.
B.
intermediate goods are not useful to consumers.
C.
that would count the intermediate goods twice.
D.
that would understate the true size of GDP.
【简答题】A．Beginning. B．Intermediate. C．Advanced D．Professional.
【单选题】( ) 不是焊接接头力学性能试验的目的。
A.
焊接工艺参数是否合适
B.
焊接接头强度是否符合设计要求
C.
焊接 接头是否容易产生热裂纹
D.
焊接接头塑性是否符合设计要求
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