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【简答题】
Directions; Complete the following passage by using the words in the box.Each word can only be used once.Note that there is one word more than you need. A.survey      B.off          C.better      D.care     E.conducted F.differed.   G.personal     H.prepared    I.contrast    J.differences, GAN Xiaolin, 18, only gets half a day __小题1:__ school every week since the Hubei student started senior high school.Every day, he takes core (核心的) courses from 7:10 am to 10:30 pm. Sometimes, Gan feels extremely stressed from the heavy workload.But he hopes that his three years of hard work toward the college entrance examination will change his life for the _小题2:_. Gan is a typical Chinese student, as shown m a recently released survey.The new survey, which was __小题3:__ by the China Youth and Children Research Center and other foreign institutions, polled(调整) about 4,000 high school and vocational school students in China, Japan, the United States and South Korea. The five biggest frustrations listed by all the young people were: an over-busy school life, an empty_小题4:__ life, dissatisfaction with their appearance, a lack of time for exercise and friends, and no spare money. Although some of the teenage problems were y-niversai, there were big _ _小题5:_ between the students when it came to the time they spent on sehoolwork. For example, Chinese students spent the most time at school and on homework.Nearly 80 percent of them spent at least eight hours a week in school, and 56.7 percent spent two or more hours on their homework.By_小题6:, only about 25 percent of US students, 20,5 percent of Japanese students, and 15 percent of Korean students had more than two hours of homework each night. The responses from the Chinese students also _小题7:_ significantly from their peers (同龄人) in the other three countries when asked about their life goals. Only 16.7 percent of Chinese students said that they didn't __小题8:_ much about their future, while the figure for that category was 72.4 percent for US students, 59.1 percent for the Japanese and 58.2 percent for the South Koreans.The _小题9: found that Chinese students were more motivated than the other students to work hard for a better life.
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参考答案:
举一反三
【判断题】工程千差万别,在用途、结构、造型、坐落位置等方面都有很大的差异,这体现了工程造价多次性的计价特点。
A.
正确
B.
错误
【单选题】某文件占10个磁盘块,现要把该文件磁盘块逐个读入主存缓冲区,并送用户区进行分析,假设一个缓冲区与一个磁盘块大小相同,把一个磁盘块读入缓冲区的时间100μs,将缓冲区的数据传送到用户区的时间是50μs,CPU对一块数据进行分析的时间为50μS。在双缓冲区结构下,读入并分析完该文件的时间是( )。
A.
1100 μs
B.
1200 μs
C.
1400 μs
D.
2000 μs
【单选题】某文件占10个磁盘块,现要把该文件磁盘块逐个读入主存缓冲区,并送用户区进行分析。假设1个缓冲区与1个磁盘块大小相同,把一个磁盘块读入缓冲区的时间为100us,将缓冲区的数据传送到用户区的时间是50us,CPU对一块数据进行分析的时间为50us。若在双缓冲区结构下,读入并分析完该文件的时间分别是()。
A.
1000us
B.
1100us
C.
1550us
D.
2000us
【单选题】(This) research program is (financed by) two funds, (the largest) of which could last (for) two years.
A.
This
B.
financed by
C.
the largest
D.
for
【单选题】影视剧中使用什么款式的假睫毛?
A.
浓密型
B.
纤长型
C.
单簇型
D.
卷翘型
【单选题】工程项目之间千差万别,在用途、结构、造型、坐落位置等方面都有很大的不同,这体现了工程造价( )的特点。
A.
动态性
B.
单个性
C.
层次性
D.
兼容性
【简答题】某文件占10个磁盘块,现要把该文件磁盘块逐个读入主存缓冲区,并送用户区进行分析,假设一个缓冲区与一个磁盘块大小相同,把一个磁盘块读入缓冲区的时间为100s,将缓冲区的数据传送到用户区的时间是50us,CPU对一块数据进行分析的时间为50us,在单缓冲区和双缓冲区结构下,读入并分析完该文件的时间分别是( )A. .1500us、1000us B. 1550uS、1100us C. 1550uS、1...
【单选题】某文件占10个磁盘块,现要把该文件磁盘块逐个读入主存缓冲区,并送用户区进行分析。假设一个缓冲区与一个磁盘块大小相同,把一个磁盘块读入缓冲区的时间为100 ,将缓冲区的数据传送到用户区的时间是50 ,CPU对一块数据进行分析的时间为50 。在单缓冲区和双缓冲区结构下,读人并分析完该文件的时间分别是()。
A.
1500 、1000
B.
1550 、1100
C.
1550 、1550
D.
2000 、2000
【多选题】下列有关假说之叙述,哪些正确?
A.
「=」只能放在H0中。
B.
虚无假说为对立假说的相反。
C.
研究者所欲搜集证据支持的假说称为虚无假说。
【单选题】某文件占 10 个磁盘块,现要把该文件磁盘块逐个读入主存缓冲区,并送用户区进行分析。假设一个缓冲区与一个磁盘块大小形同,把一个磁盘块读入缓冲区的时间为 100 μ s ,将缓冲区的数据传送到用户区的时间是 50 μ s , CPU 对一块数据进行分析的时间为 50 μ s 。在单缓冲区和双缓冲区结构下,读入并分析万该文件的时间分别是 。
A.
1500 µ s 、 1000 µ s
B.
1550 µ s 、 1100 µ s
C.
1550 µ s 、 1550 µ s
D.
2000 µ s 、 2000 µ s
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