心电图对下列疾病诊断最具有肯定价值的是（）。 A.房室肥大 B.心肌梗死 C.药物作

The de facto standard Application Program Interface (API) for TCP/IP applications is the “sockets” interface. Although this API was developed for （71） in the early 1960s it has also been implemented on a wide variety of no-Unix systems. TCP/IP （72） Written using the sockets API have in the past enjoyed a high degree of portability and we would like the same （73） with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 （74） ,new address conversion functions, and some new socket options. These extensions are designed to provide access to the basic IPv6 features requited by TCP and UDP applications, including multicasting, while introducing a minimums of change into the system and providing complete （75） for existing IPv4 applications.

A．connections 

B．protocols 

C．networks 

D．address

空气经过加热处理，温度升高，含湿量（）。

排渗设施属隐蔽工程，必须按设计要求精心选料、精心施工、详细填写隐蔽工程施工验收记录，并绘制（）。

A、施工图

B、竣工图

C、平面图

下面表述“信息孤岛”的含义正确的是（）

A、“信息岛”之间出现了不能满足与外界信息共享或信息沟通的需求

B、“信息岛”之间出现了能满足与外界信息共享或信息沟通的需求

C、“信息岛”之间出现了信息阻塞

D、“信息岛”之间出现了信息通畅

向结点数为N的顺序表的第i个结点后插入一个新结点，需要将______个结点向后移动。