Who handles correspondence for the company？

A、cashier

B、POS machine

C、credit card

D、Visa

A．The doctor is not in until late the next morning.

B．If he wants the best doctor than he should try Dr. Noon.

C．If he wants a suitable doctor he should wait until 12 o'clock.

D．The doctor who usually handles these things is not in usually in the mornings.

A．The doctor is not available until late the next morning.

B．If the man wants the best doctor he Should try Dr. Noon.

C．If the man wants a suitable doctor he should wait until 12 o'clock.

D．The doctor who usually handles these things is not in in the mornings.

ts in the private network.(72), an application-layer protocol, authenticates each peer in an IPsec transaction. IKE negotiates security policy, determining which algorithm may be used to set up the tunnel. It also handles the exchange of session keys used for that one transaction.Networks that use(73) to secure data traffic can automatically authenticate devices by using(74), which verify the identities of the two users who are sending information back and forth. IPsec can be ideal way to secure data in large networks that require(75) connections among many devices.

A．Certificate

B．Encryption

C．Tunnel

D．Presentation

听力原文： Good morning, everyone. Thank you for joining our training course. I'm your personal trainer, Davidson, and I'm going to give a demonstration how to use this machine: the first thing you will do is sit on the machine. There will be handles by your head. Reach for the handles. You will work this best if your arms are not stretched out but at an angle. If you have to reach too high, the seat is too low. The seat is easily adjustable. Gym equipment in general is made for men. At 5 feet 4 inches tall I always put any seat I am on at the lowest or highest level depending on the piece of equipment. For those of you who know machines my setting is usually 5. I moved the seat up as high as it went and I was able to reach the upper bars without them outstretched. It was very comfortable. My feet did not need to touch the floor. The upper handles are nicely padded no need to wear gloves with this machine.

Where does this talk probably take place？

A．At the gymnasium

B．At the university classroom

C．At the Davidson's office

D．At the auditorium

nal audit cannot be handled by an accountant who regularly handles the material concerned, and many companies hire outside accounting firms to perform audits."

A、由于偏见关系，审计不能由经常处理相关材料的会计师来办理，因此许多公司雇佣外部会计事务所来做审计。

B、由于偏见关系，内部审计不能由经常处理相关材料的会计师来办理，因此许多公司雇佣外部会计事务所来做审计。

C、由于偏见关系，内部审计不能由经常处理相关材料的注册会计师来办理，因此许多公司雇佣外部会计事务所来做审计。

D、以上答案都不对。

Traversing a binary tree in preorder is equivalent to(68).

A．Traversing the forest corresponding to the binary tree in root-first order

B．Traversing the forest corresponding to the binary tree in root-last order

C．Traversing the forest corresponding to the binary tree in breadth-first order

D．None of the above

s in the private network.(67), an application-layer protocol, authenticates each peer in an IPsec transaction. IKE negotiates security policy, determining which algorithm may be used to set up the tunnel. It also handles the exchange of session keys used for that one transaction.

Networks that use(68)to secure data traffic can automatically authenticate devices by using(69), which verify the identities of the two users who are sending information back and forth. IPsec can be ideal way to secure data in large networks that require secure connections among many devices.

Users deploying IPsec can(70)their network infrastructure without affecting the applications on individual computer. The protocol suite is available as a software-only upgrade to the network infrastructure. This alows security to be implemented without costly changes to each computer. Most important, IPsec allows interoperability among different network devices, PCs and other computing systems.

A．Certificate

B．Encryption

C．Tunnel

D．Presentation

expected to double.【C1】______the needs of this part of the population is a【C2】______to the ingenuity or genius of America. To a【C3】______degree, a society is judged by【C4】______it cares for those who can no【C5】______care for themselves. High technology【C6】______the most startling advances in helping the elderly. In【C7】______to the well-known artificial heart implantation, there are efforts that have already started to【C8】______artificial lungs, livers, and bones. An electric ear is【C9】______seventy-five percent effective. They will【C10】______better medical care by【C11】______very small dose of drugs into the body continuously.

For the older people, even the simplest tasks can be difficult,【C12】______impossible to perform, American businesses have responded【C13】______those older people's needs with a【C14】______of inexpensive but useful【C15】______. Companies have designed extra-efficient can openers that【C16】______people whose hands have become【C17】______weak to open cans easily. There are devices that allow people to pull on a pair of socks【C18】______straining their backs. Combs with long handles and U-shaped back brushes are【C19】______for those who can not reach as far as they could【C20】______they were young.

【C1】

A．Seeing

B．Meeting

C．Facing

D．Matching