企业培训制度得以顺利执行的关键是什么？如何保证？（考点：教材第165页)

根据以下资料，回答1~5题。The Bluetooth device, dubbed the "i-migo", installed in the cellphone can reduce the loss of its owner because it backs-up

WebSQL is a SQL-like ___(71)___ language for extracting information from the web. Its capabilities for performing navigation of web ___(72)___ make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a ___(73)___ , all the pages that can be reached from a given URL through ___(74)___ that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common ___(75)___ Interface.

(71)A. query B. transaction C. communication D. programming

(72)A. browsers B. servers C. hypertexts D. clients

(73)A. hypertext B. page C. protocol D. operation

(74)A. paths B. chips C. tools D. directories

(75)A. Router B. Device C. Computer D. Gateway

WebSQL is a SQL-like （71） language for extracting information from the web. Its

capabilities for performing navigation of web （72） make it a useful tool for automating

several web-related tasks that require the systematic processing of either all the links in a

（73） , all the pages that can be reached from a given URL through （74） that match a

pattern, or a combination of both. WebSQL also provides transparent access to index servers that

can be queried via the Common （75） Interface.

（71）A. query B. transaction C. communication D. programming

（72）A. browsers B. servers C. hypertexts D. clients

（73）A. hypertext B. page C. protocol D. operation

（74）A. paths B. chips C. tools D. directories

（75）A. Router B. Device C. Computer D. Gateway

WebSQL is a SQL-like （71） language for extracting information from the web. Its

capabilities for performing navigation of web （72） make it a useful tool for automating

several web-related tasks that require the systematic processing of either all the links in a

（73） , all the pages that can be reached from a given URL through （74） that match a

pattern, or a combination of both. WebSQL also provides transparent access to index servers that

can be queried via the Common （75） Interface.

（71）A. query B. transaction C. communication D. programming

（72）A. browsers B. servers C. hypertexts D. clients

（73）A. hypertext B. page C. protocol D. operation

（74）A. paths B. chips C. tools D. directories

（75）A. Router B. Device C. Computer D. Gateway

WebSQL is a SQL-like ___(71)___ language for extracting information from the web. Its capabilities for performing navigation of web ___(72)___ make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a ___(73)___ , all the pages that can be reached from a given URL through ___(74)___ that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common ___(75)___ Interface.

(71)A. query B. transaction C. communication D. programming

(72)A. browsers B. servers C. hypertexts D. clients

(73)A. hypertext B. page C. protocol D. operation

(74)A. paths B. chips C. tools D. directories

(75)A. Router B. Device C. Computer D. Gateway

(71)

A．transport

B．application

C．network

D．physical

根据下列材料请回答 71～75 题：

第 71 题 From this passage，it can be inferred that＿＿＿.

Bluetooth is a universal radio interface in the(71)frequency hand that enables portable electronic devices to connect and communicate wirelessly via short-range, ad hoc networks. Each unit can simultaneously communicate with up to(72)other units per piconet. Moreover, each unit can simultaneously(73)to several piconets. Eliminates the need for wires, cables and connectors for and between cordless or mobile phones, modems, headsets, PDAs, Computers, printers, projectors, local area networks, and so on, and paves the way for new and completely different devices and applications. Technology Characteristics(74)symbol rate exploits maximum available(75)bandwidth。

A．1.95GHz

B．2.45GHz

C．4.45GHz

D．11.45GHz

●Flow control is a function that prevents network congestion by ensuring that (71) do not overwhelm (72) with datA．There are three commonly used methods for handling network congestion ． (73) is used by network devices to temporarily store bursts of excess data in memory until they can be processed． (74) are used by receiving devices to help prevent their buffers from overflowing ． (75) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted．

(71)~(72)A．transmitting devices

B．transmitted devices

C．receiving devices

D．received devices

(73)~(75) A．Buffer

B．Source-quench messages

C．Buffering

D．Windowing

(71)

A．transport

B．application

C．network

D．physical