Jerry McGuire uses his Visa card to buy a new washer and dryer and a new refrigerator for his home. He plans on paying off the credit card over the next two years. How is Jerry using his credit card？

涤不洁导致废品的概率为0.00200;灌装时剂液受到污染的概率为0.00100;最后,安瓿封口不严产生废品的概率为0.00800.任意一支安瓿经过4道工序成为合格品的概率是多少？Tom和Jerry按各自的思路解答了问题,并且得到一样的答案.

记A=任意一支安瓿是合格品,A_k=第h道工序合格,k=1,2,3,4.则A=A₁A₂A₃A₄.

Tom的解答如下:

Jerry的解答如下:

=0.98408

试分析其各自的解法需要什么必要的假设及其合理性.

Why does Ms. Tucker write the letter？

A．To ask Mr. McGuire for a donation

B．To invite Mr. McGuire to an event

C．To inform. Mr. McGuire about a program

D．To encourage Mr. McGuire to visit the shelter

A Windows Communication Foundation (WCF) solution exposes the following contract over an HTTP connection.[ServiceContract]public interface IDataService{ [OperationContract] string GetData();}Existing clients are making blocking calls to GetData. Calls to GetData take five seconds to complete.You need to allow new clients to issue non-blocking calls to get the data, without breaking any existing clients. What should you do？（）

A.

B.

C.Generate a proxy class with asynchronous methods and use it for the new clients

D. Add a new endpoint to the service that uses a full-duplex binding and use it for the new clients.

s are about people."Did Jerry really care when I broke up with Helen？" "When I got that great job, did Jerry really feel good about it, as a friend？ Or did he envy my luck？" When we look back, doubts like these can make us feel bad.But when we look back, it's too late.

Why do we go wrong about our friends--or our enemies？ Sometimes what people say hides their real meaning.And if we don't really listen, we miss the feeling behind the words.Suppose someone tells you, "you're a lucky dog".Is he really on your side？ If he says, "You're a lucky guy" or "You're a lucky gal", that's being friendly.But "lucky dog"？ There's a bit of envy in those words.Maybe he doesn't see it himself.But bringing in the "dog" bit puts you down a little.What he may be saying is that he doesn't think you deserve your luck.

How can you tell the real meaning behind someone's words？ One way is to take a good look at the person talking.Do his words fit the way he looks？ Does what he says square with the tone of voice？ His posture (体态)？ The look in his eyes？ Stop and think.The minute you spend thinking about the real meaning of what people say to you may save another mistake.

1.From the questions in the first paragraph we can learn that tile speaker _____.

A.feels happy, thinking of how nice his friends were to him

B.feels he may not have "read" his friends' true feelings correctly

C.thinks it was a mistake to have broken up with his girl friend, Helen

D.is sorry that his friends let him down

2.In the second paragraph, the author uses the example of "You're a lucky dog" to show that __________.

A.the speaker of this sentence is just being friendly

B.this saying means the same as "You're a lucky guy' or "You're a lucky gal"

C.sometimes the words used by a speaker give a clue to the feeling behind the words

D.the word "dog" shouldn't be used to apply to people

3.This passage tries to tell you how to __________.

A.avoid mistakes about money and friends

B.bring the "dog" bit into our conversation

C.avoid mistakes in understanding what people tell you

D.keep people friendly without trusting them

4.In listening to a person, the important thing is __________.

A.to notice his tone, his posture, and the look in his eyes

B.to listen to how he pronounces his words

C.to check his words against his manner, his tone of voice, and his posture

D.not to believe what he says

5.If you followed the advice of the writer, you would __________.

A.be able to get the real meaning of what people say to you

B.avoid any mistakes while talking with people who envy you

C.not lose real friends who say things that do not please you

D.be able to observe people as they are talking to you

nsfer this data to server but use InnoDB engine instead. You execute the following commands: ServerB commands:Shell＞ mysqldump –u root –h server –no-data apps userdata | mysql –u root –p appsShell＞ mysql –u root –p –h server –e ‘ALTER TABLE ‘apps‘,‘userdata‘ ENGINE=InnoDB;‘Shell＞ mysqldump –u root –p –h server –no-create-info –order-by-primary apps userdata | mysql –u root –p appsWhat effect does the – order-by-primary argument have on the mysqldump command？（）

A.It exports tables with the most indexes first to assist with import speeds

B.It ensures that unique indexes have no conflicts when the data is dumped

C.It orders by primary key to assist in speeding up importing to InnoDB tables

D.It must be specified so index data is dumped correctly when –on-create-info is used

[A] reading aloud through elementary school is related to children’s reading habits

[B] Maggie McGuire’s viewpoint is wrong

[C] many parents think that children read independently is the best thing

[D] there is little difference between frequent readers and infrequent readers

请给出正确答案及解析，谢谢！

A.McGuire

B.Farnill

C.Nillson

D.Robertson

te command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0".Whic h of the following is most likely to have caused this output to occur on R1？（）

A. R1 has been configured with an ip default- network 2.0.0.0 command.

B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.

C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

D. Another router has been configured with an ip default - network 2.0.0.0 command.

E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

department uses Windows 98 computers. The department has purchased a third-party spreadsheet application that only runs on Windows 2000 Professional. You need to upgrade the computers to Windows 2000 Professional and install the new application. You choose an unattended installation method for both the operating system and the application.

The Windows 2000 Professional installation files reside on a server named Ezonexamsrv in a shared folder named W2Ksource. You place the installation files for the spreadsheet application in \\Ezonexamsrv\W2Ksource\i386\$OEMS$. You create an answer file named Acctanswer.txt and place it in \\Ezonexamsrv\W2Ksource.

You map drive letter H: to \\Ezonexamsrv\W2Ksource and begin the installation on a test computer by running the winnt32 /s:H:\i386 /u:H:\acctanswer.text command.

Windows 2000 Professional is installed successfully. However, the spreadsheet application is not installed. You want to ensure that the spreadsheet application is installed during the unattended installation.

What should you do？

A．Run thewinnt /s:H:\i386 /u:H:\acctanswer.txtcommand instead of thewinnt32 /s:H:\i386 /u:H:\acctanswer.textcommand.

B．Move the spreadsheet application installation files to \\Ezonexamsrv\W2Ksource\i386, and then run thewinnt/s:H:\i386 /u:H:\acctanswer.txtcommand.

C．Edit the[Unattended]section of the answer file to contain the parameterOemPreinstall = Yes, and then run thewinnt32 /s:H:\i386/u:H:\acctanswer.txtcommand.

D．Rename Acctanswer.txt to Unattend.txt, and then run thewinnt32 /s:H:\i386 /u:H:\unattend.txtcommand.