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更多“We’ve already worked for ()hou…”相关的问题
We’ve arranged our schedule（）any trouble．
A．no
B．in
C．/
D．without
A. know it
B. aware that
C. to know of
D. be sure that
We regret having received your offer too late, BECause we ____ our needs elsewhere.
A. already cover
B. already covered
C. have already cover
D. had already covered
A.It’s time to ask the audience for questions
B.We’ve covered quite a bit in this conversation
C.That’s all
D.Thank you for taking the time to talk with me
A.have already
B.have all ready
C.had already
D.had all ready
XP is (71) of interesting twists that encourage one to think--for example, how about "Test and then code"？ I've worked with software companies and a few IT organizations in (72) programmer performance was measured on lines of code delivered and testing was measured on defects found-- (73) side was motivated to reduce the number of defects prior to testing. XP uses two types of testing: unit and functional. (74) , the practice for unit testing involves developing the test for the feature prior to writing the code and further states that the tests should be automated. Once the code is written, it is immediately (75) to the test suite bringing instant feedback.
A．filled
B．stuff
C．pack
D．full
●We have already covered the topic of network addresses. The first(71) in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a (72) to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a (73)address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.
In classes A,B,and C,an address with all Is for the netid and hostid (32 bits) defines a(74) address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However,a router will block a packet having this type ofaddress to confine the broadcasting to the (75) network. Note that this address belongs to class E.
(71) A.datagram
B.function
C.address
D.service
(72) A.router
B.switch
C.hub
D.firewall
(73)A.source
B.destination
C.local
D.remote
(74) A.unicast
B.multicast
C.broadcast
D.anycast
(75) A.neighbor
B.next
C.remote
D.local
Gmail(Google Email)Notice
Subject： Your Gmail account has bean inactive for a long time
From “The Gmail Team”gmail-noreply@gmail,com
Time2008-06-26 14：12：15
To wanghaiyan@163.com
Hi there，
We’ve noticed that you haven’t used your Gmail account，wanghaiyan@ gmail.com，for quite some time.In order to make Gmail better for our users，we’ve added a lot of things in the last few months and we hope you’ll want to start using your account again.
Stop worrying about storage(存储量).Your account now has 5000 megabytes(兆字节)of free storage and our plan is to continue growing your storage by giving you more space as we are able.
The Gmail interface(界面)is now available in 12 languages.If you don’t see the language you want on this list.Look for it in the future because we’re going to keep adding more.
We’re still working hard every day to build for you the best email service around.But to keep Gmail great for our users.we may have to close inactive accounts after 9 months.So，we hope you’11 give us another chance.To log in(登录)to your Gmail account，just visit：http：//gmail,google,com.
Thanks.
The Gmail Team
41.Why does the Gmail Team write to the Gmail user？
Because the user hasn’t used his/her Gmail_______for quite some time.
42.What kind of storage the user’s account now has？
It now has 5，000 megabytes of_________________________storage.
43.How many languages are available in the Gmail interface now？
__________________________________________________________.
44.What may happen to the user’s account if it is inactive for 9 months？
The Gmail team may have to_______________the user’s account.
45.What is the purpose of the Gmail team in sending this email？
They hope the user will______________the account.
The Turing machine is an abstract(71)of computer execution and storage introduced in 1936 by Alan Turing to give a mathematically precise definition of(72). or 'mechanical procedure'. As such it is still widely used in theoretical computer science, especially in(73)theory and the theory of computation. The thesis that states that Turing machines indeed capture the informal notion of effective or mechanical method in logic and mathematics is known as Turing's thesis.
Every Turing machine computes a certain(74)partial function over the strings over its alphabet. In that sense it behaves like a computer with a fixed program. However, as Alan luring already described, we can encode the action table of every Turing machine in a string. Thus we might try to construct a Turing machine that expects on its tape a string describing an action table followed by a string describing the input tape, and then computes the tape that the encoded Turing machine would have computed. As Turing showed, such a luring machine is indeed possible and since it is able to simulate any other Turing machine it is called a(75)Turing machine.
A universal Turing machine is Turing complete. It can calculate any recursive function, decide any recursive language, and accept any recursively enumerable language. According to the Church-Turing thesis, the problems solvable by a universal Turing machine are exactly those problems solvable by an algorithm or an effective method of computation, for any reasonable definition of those terms.
A．implement
B．pattern
C．tool
D．model
Software entities are more complex for their size than perhaps any other human construct, because no two parts are alike (at least above the statement level). If they are, we make the two similar parts into one, a （）, open or closed.In this respect software systems differ profoundly from computers, buildings, or automobiles, where repeated elements abound. Digital computers are themselves more complex than most things people build; they have very large numbers of states.This makes conceiving, describing, and testing them hard.Software systems have orders of magnitude more（）than computers do. Likewise, a scaling-up of a software entity is not merely a repetition of the same elements in larger size; it is necessarily an increase in the number of different elements.In most cases, the elements interact with each other in some（）fashion, and the complexity of the whole increases much more than linearly. The complexity of software is a(an) （）property, not an accidental one.Hence descriptions of a software entity that abstract away its complexity often abstract away its essence.Mathematics and the physical sciences made great strides for three centuries by constructing simplified models of complex phenomena, deriving, properties from the models,and verifying those properties experimentally.This worked because the complexities（）in the models were not the essential properties of the phenomena.It does not work when the complexities are the essence. Many of the classical problems of developing software products derive from this essential complexity and its nonlinear increases with size.Not only technical problems but management problems as well come from the complexity.
A.task B.job C.subroutine D.programA.states B.parts C.conditions D.expressionsA.linear B.nonlinear C.parallel D.additiveA.surface B.outside C.exterior D.essentialA.fixed B.included C.ignored D.stabilized
