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【单选题】
如果交换机通过接收到的数据帧,动态建立了某个 MAC 地址与自己端口之间的映射关系。此后管理员又手动在 MAC 地址表中添加了这个 MAC 地址的条目,则下列说法正确的是( )
A.
交换机会根据条目进入 MAC 地址表的先后顺序，保留更新的条目
B.
交换机会同时在 MAC 地址表中保留这两条条目，但只根据最新的条目转发数据帧
C.
交换机只会保留交换机自动添加进 MAC 地址表中的条目
D.
交换机只会保留交换机手动添加进 MAC 地址表中的条目
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参考答案：
举一反三
【单选题】Samara's income is $30 a month and she spends all of it on music downloads and gasoline. The price of a music download is $3 and the price of a gallon of gasoline is $3. At Samara's best affordable po...
A.
0.5
B.
1
C.
1.5
D.
More information is needed to determine the marginal rate of substitution.
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【单选题】The table above shows the situation in the gasoline market in Tulsa, Oklahoma. If the price of a gallon of gasoline is $3.73, then
A.
there is a surplus of gasoline in Tulsa.
B.
there is a shortage of gasoline in Tulsa.
C.
the gasoline market in Tulsa is in equilibrium.
D.
without more information we cannot determine if there is a surplus, a shortage, or an equilibrium in the gasoline market in Tulsa.
E.
there is neither a surplus nor a shortage, but the market is NOT in equilibrium.
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【简答题】• Les bureaux sont ...... ..(confortable)
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【判断题】A gallon of gasoline weighs 6 pounds.
A.
正确
B.
错误
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【单选题】A l'Université, les bureaux des professeurs sont ; les fenêtres des bureaux sont .
A.
inconfortables; grandes
B.
inconfortables; petites
C.
confortables; grandes
D.
confortables; petites
查看完整题目与答案
【单选题】The rate at which Sam is willing to give up a gallon of gasoline to get one more pound of coffee, and remain on the same indifference curve is called his
A.
opportunity cost of coffee.
B.
opportunity cost of gasoline.
C.
personal price of coffee.
D.
marginal rate of substitution.
查看完整题目与答案
【单选题】那西裤前后脚口的差量一般是( )。
A.
1cm
B.
2cm
C.
3cm
D.
4cm
查看完整题目与答案
【单选题】The rate at which a person is willing to give up a gallon of gasoline to get one more pound of coffee and remain on the same indifference curve is called his or her
A.
relative cost of coffee in terms of gasoline.
B.
indifference cost of coffee.
C.
personal price of coffee.
D.
marginal rate of substitution.
查看完整题目与答案
【单选题】对于盒中内容的显示描述错误的是
A.
text-pverflow属性可以隐藏整个盒模型
B.
可以通过overflow属性来设置盒中容纳不下的内容的显示
C.
overflow-x用以单独指定水平方向上超出盒的容纳范围时内容的显示方法
D.
overflow-Y用以单独指定垂直方向上超出盒的容纳范围时内容的显示方法
查看完整题目与答案
【单选题】The table above shows the situation in the gasoline market in Tulsa, Oklahoma. If the price of a gallon of gasoline is $3.62, then
A.
there is a surplus of gasoline in Tulsa.
B.
there is a shortage of gasoline in Tulsa.
C.
the gasoline market in Tulsa is in equilibrium.
D.
without more information we cannot determine if there is a surplus, a shortage, or an equilibrium in the gasoline market in Tulsa.
E.
there is neither a surplus nor a shortage, but the market is NOT in equilibrium.
查看完整题目与答案
相关题目：
【单选题】Samara's income is $30 a month and she spends all of it on music downloads and gasoline. The price of a music download is $3 and the price of a gallon of gasoline is $3. At Samara's best affordable po...
A.
0.5
B.
1
C.
1.5
D.
More information is needed to determine the marginal rate of substitution.
查看完整题目与答案
【单选题】The table above shows the situation in the gasoline market in Tulsa, Oklahoma. If the price of a gallon of gasoline is $3.73, then
A.
there is a surplus of gasoline in Tulsa.
B.
there is a shortage of gasoline in Tulsa.
C.
the gasoline market in Tulsa is in equilibrium.
D.
without more information we cannot determine if there is a surplus, a shortage, or an equilibrium in the gasoline market in Tulsa.
E.
there is neither a surplus nor a shortage, but the market is NOT in equilibrium.
查看完整题目与答案
【简答题】• Les bureaux sont ...... ..(confortable)
查看完整题目与答案
【判断题】A gallon of gasoline weighs 6 pounds.
A.
正确
B.
错误
查看完整题目与答案
【单选题】A l'Université, les bureaux des professeurs sont ; les fenêtres des bureaux sont .
A.
inconfortables; grandes
B.
inconfortables; petites
C.
confortables; grandes
D.
confortables; petites
查看完整题目与答案
【单选题】The rate at which Sam is willing to give up a gallon of gasoline to get one more pound of coffee, and remain on the same indifference curve is called his
A.
opportunity cost of coffee.
B.
opportunity cost of gasoline.
C.
personal price of coffee.
D.
marginal rate of substitution.
查看完整题目与答案
【单选题】那西裤前后脚口的差量一般是( )。
A.
1cm
B.
2cm
C.
3cm
D.
4cm
查看完整题目与答案
【单选题】The rate at which a person is willing to give up a gallon of gasoline to get one more pound of coffee and remain on the same indifference curve is called his or her
A.
relative cost of coffee in terms of gasoline.
B.
indifference cost of coffee.
C.
personal price of coffee.
D.
marginal rate of substitution.
查看完整题目与答案
【单选题】对于盒中内容的显示描述错误的是
A.
text-pverflow属性可以隐藏整个盒模型
B.
可以通过overflow属性来设置盒中容纳不下的内容的显示
C.
overflow-x用以单独指定水平方向上超出盒的容纳范围时内容的显示方法
D.
overflow-Y用以单独指定垂直方向上超出盒的容纳范围时内容的显示方法
查看完整题目与答案
【单选题】The table above shows the situation in the gasoline market in Tulsa, Oklahoma. If the price of a gallon of gasoline is $3.62, then
A.
there is a surplus of gasoline in Tulsa.
B.
there is a shortage of gasoline in Tulsa.
C.
the gasoline market in Tulsa is in equilibrium.
D.
without more information we cannot determine if there is a surplus, a shortage, or an equilibrium in the gasoline market in Tulsa.
E.
there is neither a surplus nor a shortage, but the market is NOT in equilibrium.
查看完整题目与答案
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