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【单选题】
以下关于防火墙技术的描述,哪个是错误的?A.
防火墙分为数据包过滤和应用网关两类
B.
防火墙可以控制外部用户对内部系统的访问
C.
防火墙可以阻止内部人员对外部的攻击
D.
防火墙可以分析和统管网络使用情况
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【简答题】简述仓储在现代物流中的作用。
【简答题】内部收益率(IRR)
【多选题】Unstructured sequences have important roles in the functions of a protein:
A.
Being able to flex and bend, they can wrap around one or more target proteins like a scarf, binding with both high specificity and low affinity.
B.
By forming flexible tethers between the compact domains in a protein, they provide flexibility while increasing the frequency of encounters between the domains.
C.
They can help scaffold proteins bring together proteins in an intracellular signaling pathway, facilitating interactions.
D.
They also give proteins like elastin the ability to form rubberlike fibers, allowing our tendons and skin to recoil after being stretched.
【简答题】简述仓储在现代物流中的作用。
【单选题】The roles of protein in the body include all but:
A.
immunity
B.
blood clot formation
C.
tissue repair
D.
gas exchange
【简答题】A项目原始投资 额 为 150万元,1~10年的净现金流量为29.29万元;B项目的原始投资额为100万元,1~10年的净现金流量为20.18万元。行业基准折现率为10%。 要求:( 1)计算差 额 净现金流量 △NCF; (2)计算差额内部收益率△IRR ; ( 3)用差额投资内部收益率法决策。
【单选题】The roles of protein in the body include all but
A.
blood clot formation
B.
tissue repair
C.
gas exchange
D.
immunity
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