What are three types of routing instances？（）

A. peer discovery

B. label distribution

C. path initialization

D. session management

E. connection establishment

A.Path

B. Session

C. discovery

D. establishment

E. Advertisement

A.signature

B. anomaly

C. trojan

D. virus

E. chain

A. inbound traffic transiting the router

B. outbound traffic transiting the router

C. traffic destined to the Routing Engine

D. traffic destined to the interface address on which the filter is applied

对话理解

听力原文：M: What are three types of bank deposits exactly？

W: They are sight deposits, time deposits and certificates of deposit.

Q: What do CDs indicate according to the dialogue？

(11)

A．Sight deposits.

B．Certificates of deposit.

C．Time deposits.

D．Savings deposits.

A.informational

B.emergency

C.warning

D.critical

E.debug

F.error

Rescue dogs are generally found in the Sporting and Hunting Groups, or from the traditional Herding Group. These types include the Bloodhound, Labrador Retriever, Newfoundland, German Shepherd, Golden Retriever, and Belgian Malinois--all of which are chosen for search-and-rescue duty because of their amazing physical strength, loyalty, and their tendency for mental stability.

These types also have a keen sense of hearing and smell--to better locate lost individuals—and are often able to access hard-to-reach areas. As highly trained animals, they serve in many different fields, including specialist search, snow slide rescue, dead body location, and tracking.

To overcome obstacles and succeed when performing the demanding duties of a search-and-rescue worker, a dog must display certain qualities. In addition to intelligence and strength, the dog must be swift, confident, easily trainable, adaptable, and have a high level of stamina (耐力) and endurance. A strong sense of group cooperation and an ability to engage in friendly play during "down" time is also required of search-and-rescue dogs.

A rescue dog goes through many, many hours of intensive training to be fit for duty. Training is not for the faint-hearted. Certification training can take from two to three years, working three to four hours a day, three to six days a week, often in group,team-oriented sessions.

Each search-and-rescue field requires different types of training. Rescue training, for instance, includes "air scenting"--where dogs are trained to smell the air for the victim&39; s scent (气味) and then follow the scent to the person. This ability is crucial to finding victims trapped under collapsed buildings and snow slide.

40. Rescue dogs are chosen probably because__

A.they are loyal

B.they are brave

C.they have amazing appearances

D.they have good eyesight

What does "faint-hearted" in Paragraph 5 mean？A.Courageous.

B.Cowardly

C.Energetic

D.Slow

Which ability is most important for dogs to rescue people trapped in snow？A.Sharp hearing

B.Swift movement

C.Extraordinary smelling

D.A strong memory

What is the passage mainly about？A.Selection process of rescue dogs

B.Qualities and training of rescue dogs.

C.Risks rescue dogs are faced with

D.Types of tasks rescue dogs can perform

请帮忙给出每个问题的正确答案和分析，谢谢！

Basically, there are three types of computers, they are ___.

A、mainframe. computer

B、minicomputer

C、microcomputer

D、macrocomputer