Logistics System A logistics system consists of different functions and activities,such as the following: 1.Customer service is a core function in the logistics process.Each business entity should have a customer service department to handle complaints,special orders,loss and damage claims,returns,bills problem,and etc．This function becomes crucial because any dissatisfaction can lead to failure to retain customers. 2.Inventory management is to maintain the stock of raw materials and half-finished products.In order to satisfy the customers＇demand and minimize costs,a company should establish an optimal level of inventory to meet the market demand that exceeds our expecta-tions,and at the same time,minimize your inventory holding costs and inventory write-down costs. 3.Transportation has taken a great role in many logistics systems for two reasons.First of all,globalization and importing-exporting activities make most products necessary to be transferred from one country to another.Secondly,information revolution has propelled the manufacturing process and consumer behaviors to be changed drastically.Traditional trans-portation methods need to be upgraded to accommodate modern transportation demand,therefore,containerization and usage of information sharing system emerge. 4.Storage is needed to manage the materials and store ready-for-market products in warehouses.There is new technology applied in the storage,for example,automatic ware-house.Old-fashioned warehouse has become the distribution center where container trucks deliver and pick up the goods. 5.Information system links all logistics processes and integrates all information to en-sure all the handling of large quantity of goods are delivered in an efficient,cost-effective and accurate manner. Questions:

What is the optimal level of inventory?( )

A:The amount that you can sell as much as possible. B:The amount that you can barely meet market expectation. C:The amount to meet market demand with minimizing your current and potential inventory costs. D:The amount that you can get the most profits.

存储系统操作分级管理主要包括4个级别，分别为level 0 1 2 3 ，导致系统复位系统重启系统offline的操 作属于哪一级（）。

A:level0 B:level1 C:level2 D:level3

以下哪些IS之间可能建立Level-2邻接关系。（）

A:Level-1路由器和Level-2路由器 B:Level-1-2路由器和Level-1-2路由器 C:Level-1-2路由器和Level-2路由器 D:Level-2路由器和Level-2路由器

在IS-IS协议中，缺省情况下Level-1路由器通过（）访问其它区域。

A:Level-1路由 B:Level-2路由 C:Level-1-2路由 D:静态路由

A level gauge for a tank is to _____.

A:give the pressure B:give the contents C:give the shape of the tank D:give the accuracy level

Which of the following pumps are self-priming, and can deal with liquid from a level below the pump: （1）reciprocating; （2）vane; （3） gear.

A:（1） only B:（1） and （2） C:（2） and （3） D:（1）, （2） and （3）

Which of the following pumps are self-priming, and can deal with liquid from a level below the pump? （1） reciprocating; （2） rotary; （3） centrifugal.

A:（1） only B:（1） and （2） C:（1）, （2） and （3） D:（2） and （3）

______ means the level for which minimum appropriate protective security measures shall be maintained at all times, threats and exchanging such information with appropriate Contracting Governments.

A:Security level 1 B:Security level 2 C:Security level 3 D:Lowest safety level

______ means the level for which appropriate additional protective security measures shall be maintained for a period of time as a result of heightened risk of a security incident.

A:Security level 1 B:Security level 2 C:Security level 3 D:Medium safe level

______ means the level for which further specific protective security measures shall be maintained for a limited period of time when a security incident is probable or imminent, although it may not be possible to identify the specific target.

A:Security level 1 B:Security level 2 C:Security level 3 D:Highest safety level