问题 单项选择题

公式 (47) 能最准确地计算项目活动的工作量。

A.工作量=历时/人员生产率

B.工作量=历时/人力资源数量

C.工作量=(最乐观时间+4×最可能时间+最悲观时间)/6

D.工作量=项目规模/人员生产率

答案

参考答案:D

解析:[要点解析] 工作量是指完成一项活动或其他项目单元所需的人工单位的数量。通常用人小时、人日或人周表示。公式:工作量=项目规模/单个资源的工作效率,能最准确地计算项目活动的工作量。

阅读理解

The Internet has become part of teenage life. There’s a report on 3,375 students aged from 10 to 18 in seven Chinese cities. It says that 38% of them believe they use the Internet often. While most of them get useful information and use the Internet to help in their studies, some are not using it in a good way. Many are playing online games too much. A few even visit Web sites they should not look at. Bad things can happen if young people spend too much time on the Internet.

In order to help young people use the Internet in a good way, a textbook on good Internet behavior has started to be used in some Shanghai middle schools this term. It uses real examples to teach students all about good ways of using the Internet. Some students also make online friends. But if you are meeting a friend offline, let your parents know.

Teachers and parents all think the book is a very good idea. It will teach students how to be a good person in the online world. It will be a guide for teens using the Internet and keep students away from bad sites.

小题1:The underlined word “it” means_____?

A. the book  B. the report  C. the Internet

小题2:From the report, about____ students between 10—18 years old  

in the seven cities use the Internet often.

A. 3,375   B. 1,280   C. 2,100   

小题3: What do most of the students do on the Internet?

A. They get useful information to help in their studies.

B. They play online games.

C. They make online friends.

小题4:Why do teachers and parents think the book is a good idea?

A. Because it helps with the students’studies.

B. Because it is used in Shanghai middle schools.

C. Because it teaches students how to use the Internet in a good 

way.

小题5:Which is  the best title for the passage?

A. The Internet is very useful.

B. Students can’t use the Internet.   

C. Be careful when using the Internet.

问答题 简答题