连接字

Certain types of sockets are ''connectionless'', most commonly

某些类型的套接字是无连接的，大多数是UDP协议。

Datagram sockets are connectionless, there is no "handing off" of a client

UDP和TCP服务器的另一个重要的区别是，由于数据报套接字是无连接的，所以无法把客户

TCP is a connection-oriented protocol, and to provide users with reliable, full-duplex stream of bytes, is confirmed, Flow control, multiplexers and synchronization function to better information security protection applies to data transmission, It can solve life, commercial, military and many other fields in network communications security issues.

TCP是一种面向连接的通信协议，为用户提供可靠的、全双工的字节流服务，具有确认、流控制、多路复用和同步功能，对信息安全有较好的保护，适用于数据传输，它可以解决生活、商业、军事等多个领域的网络通信安全问题。

Candidates shoudl note that they will lose marks in Writing if their responses are a under the minimum word length, b partly or wholly plagiarised, c not written in full, connected text (e.g. if the response is in note form, if bullet points are used etc).

考生应注意，他们将失去在写作分数，如果他们的反应是 a）根据最低字长，b）部分或全部抄袭，c）不充分，书面连接的文本（例如，在说明形式的回应是，如果 Bullet Points 使用等）。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。