-
The first communication satellite was used for the purpose of（）.
A . taking the place of the radio system
B . introducing a new life-saving system
C . saving the vessels in distress
D . improving the communication on land
-
For what two purposes does the Ethernet protocol use physical addresses? （）
A . Network A - 172.16.3.48/26
B . Network A - 172.16.3.128/25
C . Network A - 172.16.3.192/26
D . Link A - 172.16.3.0/30
E . Link A - 172.16.3.40/30
F . Link A - 172.16.3.112/30
-
For what two purposes does the Ethernet protocol use physical addresses?（）
A . to uniquely identify devices at Layer 2
B . to allow communication with devices on a different network
C . to differentiate a Layer 2 frame from a Layer 3 packet
D . to establish a priority system to determine which device gets to transmit first
E . to allow communication between different devices on the same network
F . to allow detection of a remote device when its physical address is unknow
-
The main purpose of inspection for a running diesel engine is（）
A . testing for the mechanical load and the thermal load
B . inspecting thermal and mechanical condition of the engine
C . inspecting each system and exhaust temperature
D . testing for compress pressure and explosion pressure
-
For the purpose of the Rules，except where otherwise required，the term（）.
A . vessel includes seaplanes
B . seaplane includes non-displacement craft
C . vessel engaged in fishing includes a vessel fishing with trolling lines
D . vessel restricted in her ability to maneuver includes fishing vessel
-
For what two purposes does the Ethernet protocol use physical addresses？（）
A . to uniquely identify devices at Layer 2
B . to allow communication with devices on a different network
C . to differentiate a Layer 2 frame from a Layer 3 packet
D . to establish a priority system to determine which device gets to transmit first
E . to allow communication between different devices on the same network
F . to allow detection of a remote device when its physical address is unknow
-
What is the fundamental purpose for imposing radio silence? （）
A . To ensure that interference to proprietary communications is minimized
B . To ensure that only voice communications can be effected on the distress frequency or channel
C . To ensure that a distressed vessel will have a "window" twice each hour for transmitting routine messages
D . To ensure that interference on a particular frequency or channel to communications concerning emergency traffic is minimized
-
The required fireman’s outfits required for ship’s are not to be used for any other purpose EXCEPT for the（）.
A . oxygen and explosion meter when it is used for detection of flare gases
B . self-contained breathing apparatus，when used as protection from gas leaking from a refrigeration unit
C . boots and gloves that are made of rubber or electrically non-conductive material，if used when repairing electrical equipment
D . lifeline，if used by personnel entering a compartment which might be deficient of oxyge
-
Some of the larger birds can remain stationary in the air for several minutes
A . silent
B . motionless
C . seated
D . true
-
What is the primary purpose for Digital Selective Calling (DSC)?（）
A . DSC provides reception of weather and navigational warnings plus search and rescue information
B . DSC provides low-cost，routine communications for the vessel operator
C . DSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radio
D . This aids SAR authorities in tracking a vessel's position by satellite
-
It took the experts several days to decide on the for the new airport。
-
What are the three general purposes for giving speeches?
-
It took the experts several days to decide on the for the new airport。
A、source
B、earth
C、site
D、character
-
◑The main purpose of irony and satire is ______ .◑to enable us to see absurd actions◑to adjust balance of the world◑to take the wind out of politicians◑to show severe pain of human being
-
What is the possible purpose for holding the exhibition？
A．To reveal the sufferings of the native Americans
B．To make native Americans better understood by people from other cultures
C．To demonstrate philosophical achievements by native Americans
D．To explore the origin of native Americans
-
What's the purpose for adults to continue their education？
A．Enlarge their knowledge and learn new skills.
B．Catch up the opportunity to get a higher degree.
C．Learn more basic knowledge to get a diploma.
D．Make themselves live a more comfortable life.
-
According to the passage, universities show great enthusiasm for DL programs for the purpose of_____
A） building up their reputation
B） cutting down on their expenses
C） upgrading their teaching facilities
D） providing convenience for students
-
The definition of market for business purposes focuses on purchasers.
A．Right
B．Wrong
C．Not mentioned
-
For what purpose is Kafka‘s The Castle mentioned ？ 查看材料
A.To show people"s behaviors are predictable.
B.To describe the nightmare of the story.
C.To demonstrate the importance of trust.
D.To prove no one can be relied on.
-
Several industrial processes produce waste gases containing carbon monoxide. Normally these waste gases contam no oxygen. They may be considered as mixtures of CO and N<sub>2</sub>. If they contain enough CO, it is common practice to mix them with air and burn them, using the heat released to generate steam or for some other practical purpose.
-
The growth of the use of English as the world`s primary language for international communication has obviously been continuing for several decades.
(46)But even as the number of English speakers expands further there are signs that the global predominance of the language may fade within the foreseeable future.
Complex international, economic, technological and culture change could start to diminish the leading position of English as the language of the world market, and UK interests which enjoy advantage from the breath of English usage would consequently face new pressures. Those realistic possibilities are highlighted in the study presented by David Graddol
(47)His analysis should therefore end any self-contentedness among those who may believe that the global position of English is so stable that the young generation of the United Kingdom do not need additional language capabilities.
David Graddol concludes that monoglot English graduates face a bleak economic future as qualified multilingual youngsters from other countries are proving to have a competitive advantage over their British counterparts in global companies and organizations. Alongside that,(48)many countries are introducing English into the primary-school curriculum but British schoolchildren and students do not appear to be gaining greater encouragement to achieve fluency in other languages.
If left to themselves, such trends will diminish the relative strength of the English language in international education markets as the demand for educational resources in languages, such as Spanish ,Arabic or Mandarin grows and international business process outsourcing in other language such as Japanese, French and German, spreads.
(49)The changes identified by David Graddol all present clear and major challenges to UK`s providers of English language teaching to people of other countries and to broader education business sectors. The English language teaching sector directly earns nearly &1.3 billion for the UK in invisible exports and our other education related explores earn up to &10 billion a year more. As the international education market expands, the recent slowdown in the number of international students studying in the main English-speaking countries is likely to continue, especially if there are no effective strategic policies to prevent such slippage.
The anticipation of possible shifts in demand provided by this study is significant:(50) It gives a basis to all organization which seek to promote the learning and very different operating environment. That is a necessary and practical approach. In this as in much else, those who wish to influence the future must prepare for it.
请帮忙给出每个问题的正确答案和分析，谢谢！
-
The kites used by German U-boats in World War Ⅱ for the military purpose were made of ______.
A．brown paper
B．plastic material
C．light-weight cloth
D．traditional silk
-
The central bank takes part in repurchase agreement market mainly for the purpose of（）
A．Monetary policy operation
B．liquidity maintenance
C．Acquisition of benefits
D．Raising ong-term available funds
-
Your network contains a Hyper-V host named Host1 that runs Windows Server 2008 R2. The host is connected to VLAN ID 10. For testing purposes， you plan to deploy several virtual machines （）
A．an？external？network？on？VLAN？ID？10
B．an？internal？network？on？VLAN？ID？11
C．an？external？network？on？VLAN？ID？11
D．a？private？network？on？VLAN？ID？10
E．an？internal？network？on？VLAN？ID？10
