文件系统采用多级目录后,对于不同用户的文件,其文件名()
A. 应该相同
B. 应该不同
C. 可以相同,也可以不同
D. 不清楚
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目录文件中的目录项就是()
A. 文件描述符
B. 文件指针
C. 索引表
D. 表格
Section AThe annual Australian marathon is one of the toughest races in the world, a harsh test of 1.__________ for the world’s top athletes. Cliff Young, a toothless 61-year-old farmer with rubber boots, was to take part in the race. People first assumed Cliff was there to 2._________ the race. When they learned of his intention, the athletes around him reacted with 3.____________ and 4.___________. The press were curious, focused the cameras on Cliff and shouted questions at him.The marathon started and Cliff was left far behind with the strangest running style. Everyone was surprised the next morning when the news showed Cliff was still in the race. Cliff , though behind others, kept running just like gathering his sheep and trying to 5._________ a storm.By the fifth night, he had overtaken all the other runners and 6. ________ the record by finishing the 875-kilometer race in 5 days, 15 hours and 4 minutes—9 hours faster than anyone before! Cliff Young became a 7.____________ national hero. He distributed his first prize to 5 other runners. Cliff came to 8.___________ again in 1997, at age 76, when he ran around Australia to raise money for homeless children. He kept running for the rest of his life and never kept any prize.It was not until the year 2000 when he had a mild stroke that he stopped running. To this day, Cliff Young remains a magnificent 9.____________ and brilliant example of how ordinary individuals can 10.__________ achieve remarkable results.
Section BYoung people benefits a lot from playing sports. Growing children learn 1.________ skills through sports that will serve them well in their adult lives. Through sports, they learn the valuable lessons of being 2.________ in victory and 3.___________ in defeat. Youngsters grasp the 4.________ concepts such as strategy, teamwork and cooperation by playing sports. Those inherently talented develop their leadership skills and earn the 5.___________ of their team members, while those naturally less talented can be inspired and encouraged to be 6. ___________ while playing sports. All in all, sports teach youngsters much more than what is easily seen on the surface . It does not only help them keep their body in shape, but also give them a sense of 7.__________ and accomplishment. It helps them learn the ways of the world , and how to coexist with others, which 8.___________the way for their future success. However, despite the positive effects, participation in competitive team sports is not without 9. ___________. By placing excessive emphasis on winning, the sports experience may 10.__________ out many desirable effects, which may make one feel extremely pressured.
艾滋病是由于感染__________。
A. 衣原体
B. 支原体
C. 病毒
D. 白色念珠菌