隔膜

下列关于模块的说法中，不正确的是( )。

A．有两种基本模块，一种是标准模块，另一种是类模块

B．窗体模块和报表模块都是类模块，它们各自与某一特定窗体或报表相关联

C．标准模块包含与任何其他对象都无关的常规过程，以及可以从数据库任何位置运行的经常使用的函数

D．标准模块和与某个特定对象无关的类模块的主要区别在于其范围和生命周期

超临界流体是物质介于气态和液态之间的新状态，目前应用最广泛的是超临界二氧化碳，它在化学工业上可取代氟利昂作溶剂等。下列有关超临界二氧化碳的说法中不正确的是[ ]

A．超临界二氧化碳是合成的一种新物质

B．超临界二氧化碳是由CO₂分子构成的

C．超临界二氧化碳溶解某些物质后，二氧化碳可在常温常压下完全挥发

D．用超临界二氧化碳代替氟利昂，可减轻大量使用氟利昂对大气臭氧层造成的破坏

After he leaves college, he wants to go to Britain for ______ study to improve his English.[ ]

A. far

B. father

C. further

在Word 2003中如何查找文本

A multicast router may receive thousands of multicast (6) every day for different groups. If a router has no knowledge about the membership status of the (7) , it must broadcast all of these packets. This creates a lot of traffic and consumes (8) . A better solution is to keep a list of groups in the network for which there is at least one loyal member. (9) helps the multicast router create and update this list. For each group, there is one router that has the duty of distributing the (10) packets destined for that group. This means that if there are three multicast routers connected to a network, their lists of groupids are mutually exclusive. A host or multicast router can have membership in a group.

A．ICMP

B．IGMP

C．OSPF

D．RID