【判断题】
经营活动产生的现金流量最能反映企业获取现金的能力
A. 对
B. 错
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答案
A
解析
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【判断题】
沃尔比重评分法是将选定的财务比率用线性关系联系起来，并分别给定各自的分数比重，然后通过与标准比重进行比较，确定各项指标的得分及总体指标的累积分数，从而对企业的信用水平做出评价的方法
A. 对
B. 错
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1 In our class,most discussions and activities take place in assigned small groups,These groups provide a supportive and safe environment that （） learning
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5 State governments and the colleges themselves have [ ] financial help to students with special abilities and those with financial needs
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6 The committee agreed that his papers
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1 Because women often restrict their diet
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( ) experience an iron Deficiency.
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2 Some reform advocates ignore the impact of
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4 Indeed,if teachers want to( ) how far students might get in life, a better measurement than grades might be how hard the students try.
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5 Nature has( ) these animals ( ) a capacity for not showing Fear.
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6 During the weeks of discussion,delegations
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9 The young man is very happy and proud to
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7 Being asingle parent,there is no way for her
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9 We all know the dangers of an earthquake: the ( ) to buildings,the troubles can be caused by falling trees,and the terror occurs when the earth actually opens uip.
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3 Nearly six million people go to see the Mona
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4 To live with a family whose native language is English is the ideal way to further improve one's English and to gain ( )into its culture.
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6 Einstein said his scientific discoveries grew
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1 When the police caught up with him, Mr.Foster had to [ ] that he'd broken the speed limit.
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以下哪个不是有效的IP地址（）___
A. 192.168.1.111
B. 202.96.128.86
C. 202.202.43.121
D. 192.168.1.258
E.
【单选题】
一个B类IP地址，网络号为172.16.0.0/16，请问该网络内，可用的主机有（ ）个。___
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已知某个网络的掩码是255.255.248.0，那么下面属于同一网段的是（）___
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【单选题】
在一个C类地址的网段中要划分出30个子网，下面那个子网掩码最适合？（ ）___
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【单选题】
192.168.1.0/28的子网掩码是：（ ）___
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IP地址为192.168.10.234掩码255.255.255.192,则该IP所在网络的网络地址为( )。___
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与10.110.12.29/255.255.255.224属于同一网段的主机IP地址是（ ） 。___
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PPP协议中，（ ）主要用于协商在该数据链路上所传输的数据包的格式与类型。___
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下面各项组播协议中，运行哪个协议的路由器负责管理组用户主机加入、离开，通过维护用户数据，发送组播数据到主机？（ ）___
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组播IP地址中，类似于单播地址中的私有IP的是哪个范围？（ ）___
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当今世界上最流行的TCP/IP协议的层次并不是按OSI参考模型来划分的，相对应于OSI 的七层网络模型，没有定义的是（ ）___
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B类地址的前缀范围是？（ ）___
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E.
【单选题】
当端口的状态为 [ 端口－down 协议－up ] 时，意味着：( )___
A. 端口的链路已被断开，但是还能受到keep alive信号。
B. 端口已不能够收到keep alive信号，但能正常工作。
C. 端口坏了，应该换掉。
D. 端口不可能处于这种状态。
E.
【单选题】
报文经过二层交换机转发后，以下说法哪个正确？（ ）___
A. 报文的源MAC、目的MAC会改变
B. 报文的源IP、目的IP会改变
C. 报文不会有任何改变
D. 报文的源MAC、目的MAC、源IP、目的IP都会改变
E.
【单选题】
当一台以太网交换机收到一个以太帧的时候，哪个MAC地址会被交换机学习并且保存到MAC地址表中？（ ）___
A. 以太帧的源MAC地址
B. 以太帧的目的MAC地址
C. 以太帧的源和目的MAC地址
D. 以上都不对
E.
