● __(19)__是在 20 世纪初由亨利发明，它基本上是一种__(20)__，横轴表示__(21)__，纵轴表示__(22)__，__(23)__表示在整个期间上计划的和实际的活动完成情况。其直观地表明任务计划在什么时候进行，以及实际进展与计划要求的对比

(19)

● Personal firewall is a technology that helps __(66)__ intruders from accessing data on your PC via the Internet or another network, by keeping __(67)__ data from entering or exiting your system. 

Hackers do not just target national security organizations for __(68)__: They want your tax returns, network passwords, or bank account numbers. And you do not want the FBI kicking in your door because someone hijacked your PC to __(69)__ in the latest denial-of-service attack on the Internet. Now that “always-on” broadband connections such as cable modems and digital subscriber line are becoming more popular, home users are at risk. Fortunately, you can protect your data.

Firewalls can block __(70)__ attacks and protect your PC from outside threats.

(66)

● When we announced Java 2 Micro Edition (J2ME) a few years ago, we believed that Java had an important role to play in hand held devices. Some were __(71)__ that Java would be small enough for such limited devices. 

But no __(72)__, Java for the small device is a success. J2ME has emerged strongly in the wireless market. Java's portability and extensibility have brought about rapid __(73)__ in this market.

The success of Java beyond desktop computers is significant __(74)__ developers. Java literacy is now more important than ever, as Java is used more and more to __(75)__ a whole range of new computing devices—not only wireless handsets but also personal digital assistants, cameras, automobiles, home control, and so on.

(71)

● 实施信息系统建设监理的重要目的是__(64)__。

（64）

● 在编制监理规划过程中，应首先确定__(65)__的内容，以便编写其他相关内容。

（65）

对于承包商来说，风险最大的合同计价形式为__()__合同。

● 在监理控制系统中，__(63)__子系统贯穿于项目实施全过程，并且把控制系统与外部环境联系起来。

（63）

● 实施合同中承包方必须按批准的进度计划组织开发，接受监理工程师对进度的检查和监督。如果工程实际进展与进度计划不符时，__(61)__。

（61）

● 监理工程师批准索赔的权限为__(59)__。

（59）

● 不同资质等级的监理单位在监理工程的__(60)__上是不加以区别的。

（60）

● 在编制监理规划时，有关监理措施的内容应突出__(58)__。

（58）