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【单选题】
在OSI参考模型和TCP/IP参考模型中的比较中,说法错误的是()A.
OSI参考模型有7层，而TCP/IP参考模型只有4层
B.
OSI模型的网络层和TCP/IP模型的传输层都提供面向连接和无连接两种服务
C.
在OSI参考模型中，明确了服务、接口和协议3个基本概念
D.
OSI和TCP/IP模型在协议实现方面都存在很大不足
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【单选题】It can be inferred that the author would most likely agree with which of the following statements regarding marriage?
A.
It usually involves idealized mates who can serve their every physical and emotional need.
B.
It may not be realized unless the couple consider carefully about their responsibility and commitment
C.
It becomes more unrealistic nowadays than in the past because most people center on romance instead of utility.
D.
It results from many reasons such as financial reasons, family reunion, and political reasons.
【单选题】Who usually serve as impartial finders of fact in the adversarial system of the American judicial practice?
A.
Defendants
B.
Prosecuting attorneys
C.
Defense attorneys
D.
Jurors
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