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【单选题】
能屏蔽通信子网之间的差异,在通信子网和资源子网之间起到承上启下的一层是( )1A.
传输层
B.
网络层
C.
会话层
D.
表示层
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反馈参考答案：
举一反三
【简答题】He obtained the help of a local artist to do a painting for his wife' s birthday.
【简答题】矩阵的加、减运算要求相加减的( )相同。 矩阵的乘法A*B ;要求A的( )与B的( )(内阶数)相等。
【简答题】设计某IT教育研发中心的工资管理系统，该中心主要有3类人员：经理、销售员和销售经理。要求阅读以下说明和C++程序，将应填入(n)处的字句写在答题纸的对应栏内。 【说明】 设计某IT教育研发中心的工资管理系统，该中心主要有3类人员：经理、销售员和销售经理。要求存储这些人员的编号、姓名和月工资，计算月工资并显示全部信息。月工资计算办法是：经理拿固定月薪8000元;销售员拿固定工资1000元，然后再按当...
【简答题】Sophie Jones wants professional help in finding good candidates for senior posts in her computer software company.
【单选题】听力原文： A homeless man who broke into his ex-mother-in-law's house to clean himself up will be sentenced for stealing tea and toothpaste worth one penny. Martin Boothby, 41, was living on the streets wh...
A.
The man' s neighbor.
B.
The man' s own mother.
C.
The man's ex-wife.
D.
The man's ex-mother-in-law.
【单选题】Why did Mr. Crane buy the field?
A.
So that Mrs. Crane didn't have to go out in the rain to go to bed.
B.
So that there would be more space between his wife' s bedroom and the field.
C.
To build a writing-room.
D.
To build a bedroom.
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