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如果一张汇票背书为：Pay to the order of B Co On delivery Of B／L No．125 For A Co．，London Signature 它属于（） 背书
A . 特别
B . 空白
C . 限制
D . 带有条件
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A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?（）
A . The destination is a host on another subnet, so the router will not forward the packet.
B . The destination is a host on the same subnet, so the router will forward the packet.
C . The destination is a broadcast address, so the router will not forward the packet.
D . The destination is a network address, so the router will forward the packet.
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Which is the result of enabling IP Source Guard on an untrusted switch port that does not have DHCP snooping enabled？（）
A . DHCP requests will be switched in the software， which may result in lengthy response times.
B . The switch will run out of ACL hardware resources.
C . All DHCP requests will pass through the switch untested.
D . The DHCP server reply will be dropped and the client will not be able to obtain an IP address.
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A user on your network downloads a video card driver from the Internet. You are unsure of the source of the driver. You want to ensure that the user does not lose production time because of an incompatible driver. What should you do?（）
A . Install the driver into the computer. Restart the computer. Use the last known good configuration to recover the original driver if necessary.
B . Install the driver in the computer. Use the hardware troubleshooter and then use the recovery console to recover the original driver if necessary.
C . Display the advanced attributes of the video card driver file. Install the file only if the contents have been secured.
D . Run file signature verification utility to verify that the driver has been digitally signed.&e
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On a vessel carrying grades A，B，C or D cargoes，enclosed spaces where sources of vapor ignition are normally present shall NOT be segregated from cargo tanks by（）.
A . cofferdams
B . galleys
C . pump rooms
D . tanks used to carry liquids having a flash point of 150°F or above
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You need to base a data block on the EMP table, but you do not want to give the users of the application access privileges on the table. Which type of data source would you use to create the data block?（）
A . table
B . transactional trigger
C . stored procedure
D . FROM clause query
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How would you characterize the source and type in a denial of service attack on a router？（）
A . By perfornubg a show ip interface to see the type and source of the attack based upon the access-listmatches
B . By performing a show interface to see the transmitted load "txload" and receive load "rxload" ；if the interface utilization is not maxed out ，there is no attack underway
C . By setting up an access-list to permit all ICMP，TCP，and UDP traffic with the log or log-input commands，then use the show access-list and show log commands to determine the type and sourceof attack
D . By applying an access-list to all incoming and outgoing interfaces，turning off route-cache on all interfaces，then，when telnetting into the router perform a debug IP packet detail
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The default behavior of switching to the shortest path tree as soon as a new source is detected on the shared tree can be disabled by setting the value in the ip pim spt-threshold command to "zero." （）
A . loop guard
B . storm control
C . storm suppression
D . broadcast suppression
E . BPDU guard
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A host on the LAN is accessing an FTP server across the Internet. Which of the following addresses could appear as a source address for the packets forwarded by the router to the destination server（）。
A . 10.10.0.1
B . 10.10.0.2
C . 199.99.9.33
D . 199.99.9.57
E . 200.2.2.17
F . 200.2.2.18
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Which statement describes the WLCv5.2 delivery of a multicast packet from a wired PC source on VLAN_X to a respective wireless client using SSID_X, using a WLAN controller enabled for multicast?（）
A . A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, and finally to all wireless clients of that Cisco WLC, via wireless multicast.
B . A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, and finally to all wireless clients of that Cisco WLC, via wireless unicast.
C . A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joinedwireless clients via wireless multicast.
D . A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless multicast.
E . A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joinedwireless clients via wireless unicast.
F . A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless unicast.
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__________ has only the name of the endorser on the back of the B/L and does not specify the endorsed .
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Which of the following terms on the B/L shows that the Bill of Lading is clean B/L?( )
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L ove can be a rich source of _______(inspire) for an artist.
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On issuance of an L/C, the issuing bank requested ...
On issuance of an L/C, the issuing bank requested the advising bank to add its confirmation. The confirmation charges were on beneficiary's account. The confirming bank advised and confirmed the credit to the beneficiary without realization of charges on promise by the beneficiary that the charges will be paid at the time of negotiation. However the beneficiary presented the document to issuing bank directly and the confirming bank remains unpaid. The confirming bank claim charges to the issuing bank. Which one is the valid statement from the issuing bank？
(1)() The confirming bank is supposed to realize charges at the time of adding its confirmation.
(2)() The issuing bank will honor the claim of the confirming bank.
(3)() The issue is outside the scope of UCP.
(4)() The issuing bank will ask the confirming bank to settle the issue with the beneficiary.
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L/C called for freight to be paid by the beneficiary in terms of a CIF contract, Bills of lading had a stamp on them showing the words "freight to be prepaid". Negotiating Bank accepted the stamp as constituting evidencing payment of freight.
They are:
(1)( ) Correct in accepting the bill of lading.
(2)( ) Incorrect in accepting the bill of lading.
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[5-34]You are in charge of a stand-on vessel in a crossing situation. The other vessel is l.5 miles to port. You believe that risk of co
A．take avoiding action immediately upon determining that risk of collision exists
B．immediately sound the danger signal
C．take avoiding action only after providing the give-way vessel time to take action, and determining that her action is not appropriate
D．hold course and speed until the point of e
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The clean bills of lading usually indicate on the B/L that the goods （)A． in good conditio
The clean bills of lading usually indicate on the B/L that the goods ()
A． in good condition
B． with damage
C． in short shipment
D． missing safety seal
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"I'm a total geek all around," says Angela B. Yron, a 27-year-old computer prlogrammer who has just graduated from Nova Scotia Community College. And yet, like many other students, she "never had the confidence" to approach any of the various open-source software communities on the internet—distributed teams of volunteers who collaborate to build software that is then made freely available. But thanks to Google, the world's most popular search engine and one of the biggest proponents of open-source software, Ms Byron spent the summer contributing code to Drupal, an open-source project that automates the management of websites. "It's awesome," she says.
Ms Byron is one of 419 students (out of 8,744 who applied) who were accepted for Google's "summer of code". While it sounds like a hyper-nerdy summer camp, the students neither went to Google's campus in Mountain View, California, nor to wherever their mentors at the 41 participating open-source projects happened to be located. Instead, Google acted as a matchmaker and sponsor. Each of the participating open-source projects received $500 for every student it took on; and each student received $4,500 ($500 right away, and $4,000 on completion of their work). Oh, and a T-shirt.
All of this is the idea of Chris DiBona, Google's open-source boss, who was brainstorming with Larry Page and Sergey Brin, Google's founders, last year. They realised that a lot of programming talent goes to waste every summer because students take summer jobs flipping burgers to make money, and let their coding skills degrade. "We want to make it better for students in the summer," says Mr. DiBona, adding that it also helps the open source community and thus, indirectly, Google, which uses lots of open source software behind the scenes. Plus, says Mr. DiBona, "it does become an opportunity for recruiting."
Elliot Cohen, a student at Berkeley, spent his summer writing a "Bayesian network toolbox" for Python, an open-source programming language. "I'm a pretty big fan of Google," he says. He has an interview scheduled with Microsoft, but "Google is the only big company that I would work at," he says. And if that doesn't work out, he now knows people in the open-source community, "and it's a lot less intimidating."
Ms. Byron's comment on her own summer experiment is ______.
A．negative
B．biased
C．puzzling
D．enthusiastic
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听力原文： Palestinian police have arrested six members of the militant Islamic Resistance Movement (Hamas) in connection with a bomb explosion earlier this week at a controversial Jewish housing project, security sources said yesterday. The security sources gave few details on the arrests, saying they started on Tuesday in the villages of Beit Sahour and Taamara near Bethlehem in the southern part of the West Bank. The small bomb exploded on Monday night near the site of the controversial Jewish housing project of Hat Homa in the East Jerusalem district of Jebel Abu Ghneim, but no one was in the area at the time.
What caused some Hamas members to be arrested？
A．A bomb explosion at a military site.
B．An explosion at a Jewish housing project.
C．An attack against Palestinian residents.
D．A boarder dispute with Jewish residents.
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Renewable energy sources can be replenished in a short period of time. The five renewable sources used most often include hydropower (water), solar, wind, geothermal, and biomass. Renewable energy's impact on the world's energy picture is significant. Many important events have occurred during the history of using renewable sources to generate electricity--but the overall consumption from renewable energy sources has declined by about 15 percent from their I996 peak to about 6 quads in 2005.
The use of renewable energy is not new. Five generations (125 years) ago, wood supplied up to 90 percent of our energy needs. Due to the convenience and low prices of fossil fuels, wood use has fallen. Now, the biomass which would normally present a disposal problem is converted into electricity (e.g., manufacturing wastes, rice hulls, and black liquor from paper production).
Historically, low fossil fuel prices, especially for natural gas, have made growth difficult for renewable fuels. The deregulation and restructuring of the electric power industry could have a major impact on renewable energy consumption. Demands for cheaper power in the short term would likely decrease demand for renewable energy, while preferences for renewables included in some versions of proposed electricity restructuring legislation would breathe new life into this industry.
Use of renewables in the United States is not currently expected to approach that of the major fuels, and due to their limitatious (e.g., their intermittent nature-cloudy days have no solar gain, quiet days mean no wind blows to drive wind turbines, dams are primarily for flood control, so hydroelectricity production varies as dams' water levels change), renewables may never provide "the" answer to all energy problems. Around the world, renewable energy is proving to be of great value.
In 2005, about 6.1 Quadrillion Btu (Quads) of U.S. energy came from renewable fuels. Each of the energy sources we use is measured, purchased, and sold in a different form. Many units of measurement are used to measure the energy we use each day.
From 1996 to 2005, the trend of the consumption from renewable energy was ______.
A．increasing
B．decreasing
C．irregular
D．not mentioned
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听力原文：With a circulation in more than 150 countries and regions, China Daily is an important source of information on the politics, economy, law, military affairs, culture, sports, education and social life of China.
______
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We are pleased to ask you that 6000 dozen of shirts under Sales Confirmation No.C123, L/C No.5678 have gone off on S.S.()
对
错
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We are pleased to speak you that 6000 dozen of shirts under Sales Confirmation No.C123, L/C No.5678 have gone off on S.S.()
对
错
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（）Previously, enzymes were prepared mainly from animal organs and plant seeds. However, these sources of enzyme have their limits both in quantity and quality. Microbes, on the contrary, can be cultur
