问题 单项选择题

在软件项目管理中可以使用各种图形工具来辅助决策,下面对Gannt图的描述不正确的是()

A.Gannt图表现各个活动的顺序和它们之间的因果关系

B.Gannt图表现哪些活动可以并行进行

C.Gannt图表现了各个活动的起始时间

D.Gannt图表现了各个活动完成的进度

答案

参考答案:A

解析:

Gantt图(甘特图)以水平线段表示任务的工作阶段;线段的起点和终点分别对应着任务的开工时间和完成时间;线段的长度表示完成任务所需的时间。图是一个甘特图的例子。

从甘特图上可以很清楚地看出各子任务在时间上的对比关系。在甘特图中,每一任务完成的标准,不是以能否继续下一阶段任务为标准,而是以必须交付应交付的文档与通过评审为标准。因此,在甘特图中,文档编制与评审是软件开发进度的里程碑。

甘特图的优点是标明了各任务的计划进度和当前进度,能动态地反映软件开发进展情况。缺点是难以反映多个任务之间存在的复杂的因果和逻辑关系。

单项选择题 B1型题
完形填空
Cloze.
     Many people find that regular physical activity gives them an unexpected benefit. They sleep better and
wake up feeling more   1  , in part due to increased amounts of deep sleep. Deep sleep may play a role in the
body restoring (恢复) itself   2  , as opposed to REM (rapid eye movement) or dreaming sleep. Researchers
have found that physical exercise, especially   3   in the afternoon or early evening, produces more   4   early
in the night. 
       5   can also help you get a better night's sleep in a number of indirect ways. The relaxation and
tiredness   6   by exercise can improve sleep. Exercise encourages weight loss and also may   7   depression.
     Exercising later in the day can also help delay the   8   drop in your body's temperature. The   9   of exercise
are especially important for older people,  10  exercise has been shown to increase the amount of sleep senior
adults get in a night and reduce the time it takes to fall asleep. But be sure you finish exercising at least 4 hours
before bedtime-working out later than that could leave you too excited to fall asleep easily.
( )1.A. conscious   
( )2.A. physically 
( )3.A. made       
( )4.A. nigh’s sleep
( )5.A. Exercise   
( )6.A. recovered   
( )7.A. increase   
( )8.A. nighttime   
( )9.A. disadvantages
( )10.A. yet       
B. peaceful      
B. mentally      
B. done            
B. dreaming sleep  
B. Dreams        
B. strengthened  
B. relieve      
B. daytime        
B. benefits    
B. if            
C. effective     
C. emotionally   
C. functioned   
C. deep sleep  
C. Researchers   
C. caused        
C. release      
C. dinnertime     
C. ways       
C. when       
D. refreshed    
D. regularly    
D. conducted                 
D. REM         
D. Doctors      
D. reduced       
D. arouse     
D. lifetime     
D. places     
D. since