低度流行区（Area of low pest prevalence）

A .  If the classification policy is based upon the ToS byte， the qos pre-classify command is required because the ToS byte only appears in the inner IP header. B .  The ToS byte is copied to the outer header by default. Therefore， the qos pre-classify command is not necessary. C .  With GRE encapsulation， the qos pre-classify command is applied on the tunnel interface. This practice allows for different OoS configurations on each tunnel. D .  With GRE encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface. E .  With IPsec encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.

A . Differential B . Trunk C . Barrel D . Valve-in-head

A . Predicting what a passage is about. B . Creating a word web related to a topic. C . Listening to the recording of a passage. D . Sharing what is already known about a topic.

A . Identify potential problem areas B . Define intended coverage areas C . Access compliance with local building codes D . Determine the final location of APs and antennas E . Identify sources of RF signal attenuation and RF interference

A . East to northeast B . East to southeast C . North to northwest D . South to southeast

A . An account team proposal review B . An installation planning meeting C . A solution design development methodology D . A technical inspection of a completed solution desig

A .  deployment option B .  acceptable use policies C .  S-Series interface settings D .  authentication infrastructure

A.crawl B.retreat C.proceed D.drag

A．serve B．set C．attract D．absorb

Pre-sequences are a fundamental unit of conversational structure.()

The average height of the land is about 750 metres above the sea level. The Eurasian(欧亚大陆的) land mass is the largest with an area of 54,527,600 square kilometers. The smallest continent is the Australian mainland, with an area of about 7,614,600 square kilometers, which together with Tasmania, New Zealand, New Guinea and the Pacific Islands, is described as Oceania.The total area of Oceania is about 8,935,500 square kilometres, including West Iran which is political in Asia. The world's largest peninsula(半岛) is Arabia, with an area of about 3,327,500 square kilometres. The largest island in the world is Greenland, with an area of about 2,175,600 square kilometres. The largest island surrounded by fresh water is the Ilha de Marajo (4,022 square kilometres) in the mouth of the Amazon River, Brazil. The largest island in a lake is Manitoulin Island (2,766 square kilometres) in the Canadian section of Lake Huron. This island itself has on it a lake of 106 square kilometres called Manitou Lake, in which there are several islands. 1)、The total area of the world is about 211 million square kilometers. A.T B.F 2)、The area of Tasmania, New Zealand, New Guinea and the Pacific Islands adds up to about 1,320,900 square kilometres. A.T B.F 3)、Oceania is made up of Australia, New Guinea and the Pacific Islands. A.T B.F 4)、As mentioned in the passage there are several islands in Manitou Lake. A.T B.F 5)、The largest island surrounded by fresh water is in a river. A.T B.F

What bothers noise experts is that plenty of commonplace machines are just as loud as, or even louder than, the Concorde. A sanitation truck can be noisier, and so can a heavy diesel truck pulling away from a stop sign. One expert who has gone out of his way to dramatize the prevalent offensiveness of the city sound-scale is Dr. Thomas H. Fay, director of speech and hearing at Columbia-Presbyterian Medical Center in New York. Dr. Fay took a sound-meter into a New York City subway and proved that an approaching train can be twice as loud as the Concorde. Since World War Ⅱ, the number of the high-powered noise-makers, from trucks and motorcycles to air conditioners and sirens has increased almost geometrically. It' s no wonder that in many areas of the country, especially in the suburbs, the average sound level has doubled in 20 years. Noise experts estimate that city noises are increasing a half-decibel a year. They found that in 1971 the quietest parts of Los Angeles--thought to be a relatively quiet city--were louder than the loudest districts of New York in 1937. This passage mainly talks about ______ . A．the problem of the supersonic transport plane, the Concorde B．a comparison between the Concorde and other machines C．the problem of noise D．noise in the suburbs

是 否

是 否

A.Pre-Islamic Arabia was backward and underdeveloped. B.Pre-Islamic Arabs showed no interest in sea trade. C.Mecca was one of the most important trading centers. D.Pre-Islamic Arabs would pray to their tribal gods or goddesses.