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【单选题】
Back-to-school shopping lists are constantly evolving to keep up with technological advancements, many even including cell phones, laptops, Blackberrys and iPods, But one clear staple remains-the pencil. As 5-year-old children opt to play computer learning games instead of using traditional learning toys, and middle schoolers would not even think to research a school project with a physical encyclopedia, the staying power of the little wooden pencil-like the ones George Washington used-seems remarkable. Not only are pencils still used in classes like art and math, the good old No. 2 pencil is the key to the multiple-choice, computer-graded tests that open doors to the nation's universities and graduate programs. Tom Ewing, spokesman for the Educational Testing Service, which administers tests like the SAT, GRE and GMAT, said that while the number of people taking them on computers is increasing, the paper and pencil versions still predominate. Ewing said that in fiscal 2004 the number of people who took the tests on computers was only a fraction of those using pencils--only about 1. 6 million people on computers, compared with about 23. 7 million using paper and pencil. Ewing cited several reasons for this difference: 'Wider use of computers is hampered somewhat by availability--where can you find computers for 25 million people? Sometimes it is security, the need to have a proctor, and sometimes it is cost.' He said ETS would like to increase the number of computer tests, though a major shift is far down the road. 'For the foreseeable future paper and pencils remains the reliable workhorse of educational measurement,' Ewing said. Lack of access to computers is one of the major reasons computer testing is still far behind traditional pencil tests, said Tim Loomer, president of testing and assessment and Scantron Corp. Scantron provides many of the multiple-choice tests in K-12 education. Though there is a trend toward online testing, there has not been a real drop-off in paper and pencil testing, Loomer said. 'Not everyone has a computer, but I guarantee you can get everyone a pencil,' Loomer said. Technological initiatives, such as Duke University's plan to hand out free iPods to incoming freshman, have not reduced demand for pencils. The university is giving out the small electronic devices to allow students to listen to lectures, browse course bulletins or practise pronunciation for language classes. Mike Finn, spokesman for PaperMate, which says it is the biggest producer of pencils in the United States, said pencils are still popular and necessary. Demand for pencils is strong, he said, but children are interested in more modern pencil options, not just the simple yellow wooden pencil. An increasing number of children are opting for mechanical pencils or color pencils, but PaperMate's general sales of pencils have not waned as technology increasingly enters classrooms and children's homes, he said. Musgrave Pencil Co. in Shelbyville, Tenn. , has seen an increase in preference for fancy pencils in recent years. Lynn Hulan of Musgrave said the pencils preferred today tend to have bright colors and often include slogans such as 'I Love to Read' and 'Honor Roll'. At Burning Tree Elementary School in Bethesda. Md. , No. 2 pencils are always on the school supplies list, Principal Helen Chaset said. In Judy Shapiro's math classes at Burning Tree, pens are not allowed, and she does not know of many teachers who allow pens in math. 'Kids that try to use pens tend to not want to check to see if they have made an error' because they know they have to cross out a mistake and then it can be seen, she said. As for calculators, Shapiro said they may be used to check over work, but most work is done with paper and pencil. If students rely only on calculators, they will not be able to do basic tasks like adding and
A.
Pencils.
B.
Mobile phones.
C.
Computers.
D.
Suitcases.
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参考答案:
举一反三
【单选题】工序中,用来确定本工序加工表面的位置的基准称为( )。
A.
工序基准
B.
定位基准
C.
设计基准
D.
装配基准
【单选题】在加工工序图中,用来确定本工序加工表面位置的基准称为()。
A.
工序基准
B.
定位基准
C.
设计基准
D.
测量基准
【判断题】工序基准是指在工件工序图中,用来确定本工序加工表面位置的基准。
A.
正确
B.
错误
【简答题】已知X,Y,Z,Q为短周期非金属元素,R是长周期元素,X原子的电子占据2个电子层且原子中成对电子数是未成对电子数的2倍;Y的基态原子有7种不同运动状态的电子;Z元素在地壳中含量最多;Q是电负性最大的元素;R + 离子只有三个电子层且完全充满电子。 回答下列问题:(答题时,X、Y、Z、Q、R用所对应的元素符号表示) (1)X元素为 ,X、Y、Z中第一电离能最大的是 。 (2)已知Y 2 Q 2 分子...
【单选题】被英国植物学家威尔逊称为“世界园林之母”的国家是
A.
意大利
B.
英国
C.
中国
D.
俄罗斯
【单选题】在加工工序中,用来确定本工序加工表面的位置的基准称为(    )。
A.
工序基准    
B.
定位基准    
C.
设计基准    
D.
装配基准
【单选题】在加工工序中用来确定本工序加工表面的位置称为( )。
A.
工序基准
B.
定位基准
C.
设计基准
D.
辅助基准
【简答题】使用图案填充的方法完成如下三个图案,要求: 1、注意分图层完成,图层要命名成有实际意义的名称,不要是图层1,图层2...... 2、以附件形式上传,分别命名为“末两位学号斜线.psd”“末两位学号棋盘格.psd”和“末两位学号波点.psd”。命名不要张冠李戴。
【单选题】在加工工序图中,用来确定本工序加工表面位置的基准称为()
A.
设计基准
B.
定位基准
C.
工序基准
D.
测量基准
【多选题】显性感染的类型包括
A.
隐性感染
B.
急性感染
C.
慢性感染
D.
局部感染
E.
全身感染
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