A transport layer protocol has several responsibilities, One

【名词&注释】

定性分析(qualitative analysis)、技术经济(technical economy)、胶原纤维(collagen fiber)、系统安全(system security)、应用程序(application)、测定仪(determinator)、端口号(port number)、不符合(inconformity)、γ照相机(gamma camera)、施工进度安排

[单选题]A transport layer protocol has several responsibilities, One is to create a process-to-process (program-to-program) communication; TCP uses port (1) to accomplish this. Another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. TCP uses a sliding (3) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends (5) of data to the transport layer. It is the responsibility of the transport layer at the sending station to make a connection with the receiver.

A. C

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学习资料：

[多选题]信息系统安全等级测评报告》的结论为下列哪几种（）。

A. A、符合
B. B、基本符合
C. C、部分符合
D. D、不符合^{(inconformity)}

[单选题]目前临床核医学应用最广泛的显像仪器（）

A. γ照相机^{(gamma camera)}
B. SPECT
C. PET
D. 甲状腺功能测定仪
E. 活度计

[单选题]新技术应用方案的技术经济分析方法中，施工新技术方案是否先进可行，是否满足施工进度安排要求的分析方法是()。

A. 定性分析
B. 技术分析
C. 事前分析
D. 定量分析

[单选题]Waller变性是（）。

A. 轴索及髓鞘的变性
B. 神经元纤维变性
C. 神经束衣变性及黏液变性
D. 胶质纤维变性
E. 胶原纤维变性

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