The important thing is that this is a major breakthrough. “breakthrough” here means an important development or achievement.

Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

A customer is purchasing an IBM System Storage DS8700. What is the most important first step for the installation?（）

For each blank，choose the best answer from the four choices and write down on the answer sheet．(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group．(67) is an error detection code that most data communication networks use．(68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information．(69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non -periodic basis over a range of media.(70) is an identifier of a web page.

An alternator switchboard has a synchroscope and synchronizing lamps, if the synchroscope is broken, which of the steps listed is the most essential before an alternator can be paralleled with the bus （）

It is an early step toward a robo-car that can drive itself, perhaps（）.

（ ）estimating is a technique for estimating the duration or cost of an activity ou project using historical data from a similar activity or project.

A customer is purchasing an IBM System Storage DS8700. What is the most important first step for the installation?（）

A current moving across a lock entrance toward the river or toward the dam is called a(n)（）.