有关疲劳的说法正确的是？ Which of the following about fatigue is right?

有关疲劳的说法正确的是？ Which of the following about fatigue is right?

A.只要吃饱睡好就不会有疲劳感 As long as enough sleep and full will NOT have the feeling of fatigue

B.在高警惕的阶段不会感觉疲劳 In the stage of high alert will NOT feel fatigue

C.疲劳的特征之一是它随着时间的增加而累积 One of the characteristics of fatigue is that it accumulated along with the increase of time

正确答案是C