题目内容
（请给出正确答案）
[单选题]
“Bar Code”是指（）。
A.电子数据交换
B.商品条形码
C.电子收款机
D.销售点管理系统
答案
查看答案
重要提示：请勿将账号共享给其他人使用，违者账号将被封禁！
查看《购买须知》>>>
请输入或粘贴题目内容
搜题
拍照、语音搜题，请扫码下载APP
题目内容
（请给出正确答案）
A.电子数据交换
B.商品条形码
C.电子收款机
D.销售点管理系统
答案
更多““Bar Code”是指（）。”相关的问题
第1题
Many delivery services use bar codes to track the progress of each envelope, package, or crate in transit. Every item (142) a bar code, which is read at a number of points from the moment it leaves the sender's hands to the moment the recipient accepts the delivery.
An interesting use for the bar code has been developed by a scientist who works with bees. The scientist attached bar codes to the backs of individual bees in order to (143) them and to follow their movements. Laser scanners at the entrance of the hive read the bar codes to monitor how long each bee had been gone from the hive. By keeping (144) of individual bees, scientists hope to learn more about honey production. Knowing how far bees travel to gather pollen and how many trips they make back to the hive could eventually help beekeepers predict honey yields.
(41)
A．so
B．either
C．each
D．both
第2题
听力原文： Visitors to Britain may find the best place to approach local culture is in a traditional pub. The mysterious rituals of British pubs must be taken into consideration.
Most pubs have no waiters. You have to go to the bar to buy drinks. This may sound inconvenient, but there is a hidden purpose. Pub culture is designed to promote sociability in a society known for its reserve. Standing at the bar for service allows you to chat with others waiting to be served. The bar counter is possibly the only site in the British Isles in which conversation with strangers is considered entirely appropriate and really quite normal behavior.
"If you haven't been to a pub, you haven't been to Britain." This tip can be found in a booklet, Passport to the Pub: The Tourists' Guide to Pub Etiquette, a customers' code of conduct for those wanting to sample "a central part of British life and culture". The trouble is that if you do not follow the local rules, the experience may fall flat. For example, if you are in a big group, it is best if only one or two people go to buy the drinks. Nothing irritates the regular customers and the bar staff more than a gang of strangers blocking all access to the bar while they chat and hesitate about what to order.
(26)
A．Church.
B．Art museum.
C．Buckingham Palace.
D．Local pubs.
第3题
GS1系统是可持续发展的。随着信息技术的发展与应用，该系统也在不断发展和完善。产品电子代码(Electronic Product Code，EPC)就是该系统的新发展。()
第4题
After spending World War II on the Manhattan Project , Mr. Woodland resumed his studies at the Drexel Institute of Technology in Philadelphia (it is now Drexel University), earning a bachelor’s degree in 1947.
As an undergraduate, Mr. Woodland perfected a system for delivering elevator music efficiently. He planned to pursue the project commercially, but his father, who had come of age in “Boardwalk Empire”-era Atlantic City, forbade it: elevator music, he said, was controlled by the mob, and no son of his was going to come within spittingdistance.
The younger Mr. Woodland returned to Drexel for a master’s degree. In 1948, a local supermarket executive visited the campus, where he implored a dean to develop an efficient means of encoding product data. The dean demurred, but Mr. Silver, a fellow graduate student who overheard their conversation, was intrigued. He
conscripted Mr. Woodland.
An early idea of theirs, which involved printing product information in fluorescent ink and reading it with ultraviolet light, proved unworkable.
But Mr. Woodland, convinced that a solution was close at hand, quit graduate school to devote himself to the problem. He holed up at his grandparents’ home in Miami Beach, where he spent the winter of 1948-49 in a chair in the sand, thinking.
To represent information visually, he realized, he would need a code. The only code he knew was the one he had learned in the Boy Scouts.
What would happen, Mr. Woodland wondered one day, if Morse code, with its elegant simplicity and limitless combinatorial potential, were adapted graphically？ He began trailing his fingers idly through the sand.
“What I’m going to tell you sounds like a fairy tale,” Mr. Woodland told Smithsonian magazine in 1999. “I poked my four fingers into the sand and for whatever reason — I didn’t know — I pulled my hand toward me and
drew four lines. I said: ‘Golly! Now I have four lines, and they could be wide lines and narrow lines instead of dots and dashes.’”
Today, bar codes appears on the surface of almost every product of contemporary life.All because a bright young man, his mind ablaze with dots and dashes, one day raked his fingers through the sand.
第5题
请根据短文内容，回答题。
Compact Disks
If someone says to you your music CDs don&39;t really hold any music on them, and they only have numbers recorded on them, you may not believe it. In fact, he is right in that sound is actually recorded onto the CDs as special numbers--a digital code. The code is pressed onto the CD as bumps (隆起 )on a long spiral track almost five kilometers long. These bumps are an average of 0.5 microns (微米) wide.＜br＞
A small laser beam shines onto the bumps as the CD turns. The light is reflected back to a receiver that records how the laser light bounces back. This lets the CD player turn the reflected light back into the original code. This means you can hear the original code as music.＜br＞
Digital codes are used with many technologies. E-mail needs these kinds of code numbers.＜br＞
Space probes (探测仪) communicate with their ground station on earth using digital codes. Bar codes are read as digital codes in computer systems. Digital communications with cell phones need digital codes. Weather radios also tune in to specific signals using these codes.＜br＞
There are many types of compact disks. One format is called CD-RWs. They can be recorded on and re-recorded on (rewritten on) as you would do with a floppy disk (软盘). Another format is the CD-ROM. The technology for recording on these disks is different from other CDs. These CDs have a dye layer that the CD writer can darken or leave clear. The clear and dark spots are the digital code. CD-ROM stands for Compact Disc--Read Only Memory. This disk is like a "super"floppy disk that can hold lots of information. One CD-ROM can hold the same amount of data as 500 floppy disks. Information is permanently recorded onto it. Computer games and other programs are＜br＞
considered to be CD-ROMs.＜br＞
CDs were first sold to the public in 1982. These CDs still play well and sound fine. Current CDs are expected to last between 70 to 200 years. Of course, you can make sure your CDs last a long time by taking care of them.＜br＞
Science keeps on developing. It may not be many more years before a completely new technology is invented and introduced to the public for music recording. In the meantime, there is no doubt you will continue to enjoy listening to your favorite music on CDs and playing your favorite computer games on CD-ROMs.
Music is recorded onto CDs as __________. 查看材料
A.laser beams
B.digital codes
C.musical notes
D.special sounds
第6题
A.四一七条码
B.UCC/EAN 128
C.库德巴码
D.CODE 39
第7题
Compact Disks
1 If someone says to you your music CDs don&39;t really hold any music on them, and they only have numbers recorded on them, you may not believe it. In fact, he is right in that sound is actually recored onto the CDs as special numbers --a digital code. The code is pressed onto the CD as bumps on a long spiral track almost five kilometers long. These bumps are an average of 0.5 microns wide.
2 A small laser beam shines onto the bumps as the CD turns. The light is reflected back to a receiver that records how the laser light bounces back. This lets the CD player turn the reflected light back into the original code. This means you can hear the original code as music.
3 Digital codes are used with many technologies. E-mail needs these kinds of code numbers. Space probes communicate with their ground station on earth using digital codes. Bar codes are read as digital codes in computer systems. Digital communications with cell phones need digital codes. Weather radios also tune in to specific signals using these codes.
4 There are many types of compact disks. One format is called CD-RWs. They can be&39; recorded on and re-recorded on (rewritten on) as you would do with a floppy disk. Another format is the CD-ROM. The technology for recording on these disks is different from other CDs. These CDs have a dye layer that the CD writer can darken or leave clear. The clear and dark spots are the digital code. CD-ROM stands for Compact Disc -- Read Only Memory. This disk is like a "super" floppy disk that can hold lots of information. One CD-ROM can h01d the same amount of data as 500 floppy disks. Information is permanently recorded onto it. Computer games and other programs are considered to be CD-ROMs.
5 CDs were first sold to the public in 1982, These CDs still play. well and sound fine. Current CDs are expected to last between 70 to 200 years. Of course, you can make sure your CDs last a long time by taking care of them.
6 Science keeps on developing. It may not be many more years before a completely new technology is invented and introduced to the public for music recording. In the meantime, there is no doubt you will continue to enjoy listening to your favorite music on CDs and playing your favorite computer games on CD-ROMs.
Paragraphs 1 & 2 ______
A Digital Code Has Wide ApplicationsB Floppy Disks Are OutdatedC CDs Are DurableD CD&39;s Working Principle Is ExplainedE CD-RWs Play Better Than CD-ROMsF CDs Are of Many Formats
Paragraph 3 ______
A Digital Code Has Wide ApplicationsB Floppy Disks Are OutdatedC CDs Are DurableD CD&39;s Working Principle Is ExplainedE CD-RWs Play Better Than CD-ROMsF CDs Are of Many Formats
Paragraph 4 ______
A Digital Code Has Wide ApplicationsB Floppy Disks Are OutdatedC CDs Are DurableD CD&39;s Working Principle Is ExplainedE CD-RWs Play Better Than CD-ROMsF CDs Are of Many Formats
Paragraph 5 ______
A Digital Code Has Wide ApplicationsB Floppy Disks Are OutdatedC CDs Are DurableD CD&39;s Working Principle Is ExplainedE CD-RWs Play Better Than CD-ROMsF CDs Are of Many Formats
One advantage of CD-RWs is that they can ______ like floppy disks.
A shine on bumpsB take many mom yearsC be the key partsD restore the original codeE be written on and rewritten onF keep contact with their ground station efficiently
The author predicts it will not ______ before a new technology is invented for music recording.
A shine on bumpsB take many mom yearsC be the key partsD restore the original codeE be written on and rewritten onF keep contact with their ground station efficiently
The laser beam-emitting device and the receiver are considered to ______ of a CD player.
A shine on bumpsB take many mom yearsC be the key partsD restore the original codeE be written on and rewritten onF keep contact with their ground station efficiently
Space probes could not ______ without using digital codes.
A shine on bumpsB take many mom yearsC be the key partsD restore the original codeE be written on and rewritten onF keep contact with their ground station efficiently
请帮忙给出每个问题的正确答案和分析，谢谢！
第8题
The FBI (Federal Bureau of Investigation) had found a new way to catch criminals by looking at their jeans. Scientists from the bureau reported at last weeks meeting of the American academy of Forensic Sciences in San Francisco that every pair of blue jeans has a unique wear pattern. The FBI has already used this "bar code "to place a suspect at the scene of a crime.
Richard Vorder Bruegge, a scientist at the FBI laboratory in Washington D. C. , and his colleagues developed the technique while helping to identify suspects who were robbing banks and setting off bombs ii1 Washington In April 1996, one of the gang was caught on film . He was wearing a mask, but part of his trousers was visible.
When the photograph was enlarged Vorder Bruegge noticed light and dark lines running across the seam of the man' s jeans. His team found that the pattern originated from slight imperfections introduced when the trousers were made. Workers sew the seams by pushing the fabric through a machine, and the irregularity of that motion stretches and binds the fabric . The colored layer of cotton in the raised portion is worn away, creating white bands.
The patches are more striking on jeans than other types of trousers because they are often al- lowed to become extremely worn, "People just keep wearing them, "says Vorder Bruegge.
The FBI analyzed the jeans of suspects in the Washington case. One pair had a pattern with over two dozen features that matched the jeans Vorder Bruegge's team photographed. At the tri- al, the defense called in a used jeans exporter as an expert witness who claimed the patterns were common to all jeans. He showed the court 34 similar pairs, but in each case the FBI could distinguish them from the accused . The suspect was convicted.
"To place a suspect at the scene of a crime" at the end of the first paragraph means that theFBI
A．has been able to prove a suspect guilty
B．will lead a suspect to the spot of a crime
C．were at the scene with the suspect.
D．caught the suspect on the spot
第9题
A.Data Matrix
B.QR Code
C.CODE 16K
D.Code One
