：Keys should never be hidden around the house since thieves（）know where to find th

them．

A．virtually

B．unavoidably

C．reliably

D．invariably

e low. But you can avoid risk in the following ways. AT HOME - You should make sure your house or flat is secure. Always lock the door from the inside at night, but you must keep the key nearby, so that you can use it to get out quickly if there is a fire. - You must never give keys to workmen as they can easily make copies. - If you wake up and hear a burglar, stay quietly in bed. Pretend you are asleep. If you feel more confident, switch on the light and make a lot of noiseeven if you are on your own you should call out loudly to an imaginary companion, so that the burglar thinks you are not alone and runs away. You should have a phone or a mobile in your bedroom to alert the police immediately. - If you come home and think you see signs of a break-in, you shouldn't go in, the burglar may be inside. You should go to a neighbour and call the police. ON THE STREET At night: - Always walk facing the traffic, so that a car cannot pull up behind you. - You mustn't go through parks or woods. - If you think someone is following you, cross the road one or two times. If he or she continues to follow you, go to a pub or other public place. - Always carry your bag close to you, but carry your house keys in your pocket so that you can open the door quickly. If someone attacks you - remember your safety is more important than your property.

1). This passage mainly focuses on ().

2). If you want to guarantee your safety at home, you should ().

3). Based on the passage, if you notice someone following you, it's better for you to ().

4). Why should you have a telephone in the bedroom？

5). From the passage, we can infer that we might be victims if ().

(1).A、how to avoid crimes both at home and in the street

B、 where to stay if you want to be safe

C、 what you should do at home if there is a burglary

D、 how to avoid crime at night in the street

(2).A、always lock the door and put the key in a secret place far away from the door

B、 never leave the keys with workmen since they can easily make copies

C、 keep silent all the time even if you are on your own when a burglar steals into your house

D、 go in immediately when you suspect someone is breaking into your house

(3).A、shout loudly

B、 run quickly

C、 stop, turn around and look at him

D、 go to public places

(4).A、Because we might use it to alert the burglar.

B、 Because it's convenient for us to talk to our friends while lying in bed.

C、 Because it's convenient for us to report to the police in case there is a burglary.

D、 Because we might use it to make a phone call at midnight.

(5).A、we cannot part with the money when being attacked

B、 we always walk facing the traffic

C、 we don't walk in the empty street

D、 we carry too much cash

A.misplace

B.notify

C.install

D.relocate

A.Learn your lesson

B.bit your tongue

C.eat your words

D.cross your fingers

A. In the DH key exchange process, the session key is never passed across the network.

B. In the DH key exchange process, the public and private keys are mathematically related using the DH algorithm.

C. In the DH key exchange process, the session key is passed across the network to the peer for confirmation.

D. In the DH key exchange process, the public and private keys are not mathematically related, ensuring higher security

—I am very forgettable recently, and always looking for my keys.

—You should keep a diary. That will help you ______________.

A.remember where your keys are

B.trace the whereabouts of your keys

C.keep things on track and relieve stress

D.keep records of your thoughts

They should never try to pursue profit health and life of people.

A、in terms of

B、at sight of

C、at the expense of

Public Key Infrastructure(PKI) service providers offer organizations fully integrated PKI-managed services designed to secure Intranet, Extranet, Virtual Private Network(VPN), and e-commerce applications. PKI solutions can enable a number of security services, including strong authentication and non-repudiation of transactions.eToken enables the users of PKI systems to generate and store(101)and digital certificates inside the token, creating a secure environment and allowing full portability and maximum ease of use. eToken Pro can also perform. sensitive on-chip(102)operations, ensuring that users' keys axe never exposed to the PC environment, eToken eliminates the need to store(103)and keys on a hard disk or browser file, or to transmit them across the Internet/Extranet; assuring peace-of-mind and confidence during online communications.A digital signature is created using the private key of an individual to ensure the Validity of his request. This technology can be used to guarantee(104)of various transactions. The strength of either the authentication level or the digital signature relies on the level of protection offered to the private key. eToken Pro offers the maximum level of security, since it enables the use of the private key for signing and authenticating inside the eToken.The most secure use of authentication involves enclosing at least one certificate with every signed message. The message(105)verifies the certificate using the CA's public key. If the sender's public key is legitimate, the recipient verifies the message's signature. Digital signatures created with a private key are verified with the digital certificate containing the public key.

A．private keys

B．public keys

C．authentication codes

D．message digests

med Sales. The database is configured as shown in the exhibit.

In the last six months, the database has grown by 4 GB. Users report that query response time has slowed. The options set up on the database are shown in the Database Options exhibit.

You want to accelerate query response time. What should you do？

A．Update the database statistics.

B．Add indexes to the foreign key fields.

C．Truncate the transaction log.

D．Run the database maintenance plan wizard.

E．Drop primary keys from all tables.

We should never ______ today's work till tomorrow.

A、put on

B、put off

C、put away

D、put up