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【判断题】
精密度指的是同一样品多次测量值之间相互接近的程度。A.
正确
B.
错误
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反馈参考答案：
举一反三
【多选题】There are many reasons why customers lack sufficient security measures on the network. Which two reasons for insufficient security are typical of the customers today?（）
A.
the desire to avoid unnecessary technologies
B.
the belief that free security tools are sufficient
C.
the perceived costs of security solutions
D.
the use of hosted email services eliminating the need for local security
E.
the lack of threats to their network
F.
the lack of risk analysis
【简答题】云计算的定义是什么?
【单选题】Why would a rogue host that is running a DHCP server on a campus LAN network present a security risk？（）
A.
It may allocate IP addresses from an unknown subnet to the users.
B.
All multicast traffic can be sniffed by using the DHCP multicast capabilities.
C.
The CPU utilization of the first hop router can be overloaded by exploiting DHCP relay open ports.
D.
A potential man-in-the-middle attack can be used against the clients.
【简答题】一家完全竞争市场上利润最大化的厂商现在生产 1000单位产品,他的平均收益是10元,平均成本是6元,固定总成本是2000元。 计算:( 1)利润是多少?(2分) ( 2)边际成本是多少?(2分) ( 3)平均可变成本是多少?(3分) ( 4)如果平均收益(市场价格)变为4元,该厂商是否会亏损,如果亏损请说明是否停止营业。(5分)
【单选题】某公司是一家起步不久的小商品生产厂家,其所在的产品市场已经基本上达到了完全竞争状态。为了进一步扩大生产规模,厂方初步决定要招募一批工人。 假定该公司所处的劳动力市场也是完全竞争的,那么该公司为了实现利润最大化,它从增加雇佣最后一名工人中所获得的边际收益应该是( )。
A.
大于市场工资率
B.
等于市场工资率
C.
小于市场工资率
D.
等于雇佣这名工人的边际成本
【简答题】云的定义和观测内容是什么？
【单选题】某日,黄某牵着狗在山坡上闲逛,偶遇平日与己不和的刘某,黄某即唆使其带的狗扑咬刘某,刘某警告黄某,黄某继续唆使狗扑咬刘某。刘某边抵挡边冲到黄某面前,拣起石块将其头部砸成轻伤,黄某见头上流血,慌忙逃走。从刑法理论上看,刘某的行为属于( )。
A.
紧急避险
B.
正当防卫
C.
防卫过当
D.
对象错误
【单选题】The network administrator has configured port security on a Ezonexam switch. Why would a network administrator configure port security on this Ezonexam device?
A.
To prevent unauthorized hosts from getting access to the LAN
B.
To limit the number of Layer 2 broadcasts on a particular switch port
C.
To prevent unauthorized Telnet or SSH access to a switch port
D.
To prevent the IP and MAC address of the switch and associated ports
E.
None of the above
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