The buses are always late and sometimes don’t come at all. They’re totally _____________.

A . involution B . encoding C . sampling D . quantization E . compression F . companding

A . Well, I don't care. B . Don't blame me. C . I am really sorry. D . That's great.

A . The bgp deterministic-med command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path length B . The bgp always-compare command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path system C . Enabling the bgp deterministic-med command ensures the comparison of the MED variable when choosing routes advertised by different peers in the same autonomous system. D . Enabling the bgp always-compare-med command ensures the comparison of the MED variable for paths from neighbors in different autonomous systems. E . The bgp deterministic-med and bgp always-compare-med commands are enabled by defult.

A . local-mode coverage B . SAR operations C . data process D . continuous broadcast

A .  involution B .  encoding C .  sampling D .  quantization E .  compression F .  companding

A . zero B . at least one C . at least two D . at least four E . at least three

A.will already have started B.would already have started C.shall have already started D.has already been started

A.I couldn’t find my car keys B.You know what happened？ C.I didn’t catch the bus D.My car was out of order

A)另一些科学家说能源的问题显得很糟 , 节约能源为时已晚。 B)另一些科学家的观点是能源的状况很糟 , 节约能源迫在眉睫。 C)另一些科学家坚信环境问题会更严重 , 并且很快人们的环境将无法挽救。 D)另一些科学家相信环境变得更糟糕了 , 并且已经来不及挽救了。 E)另一些科学家认为环境问题会更严重 , 并且很快这种糟糕的环境将无法挽救。

The radiation comes as a result of the 500 atomic bomb tests carried out in the atmosphere by the nuclear nations in the 1950s and 1960s. Long-lived isotopes in the fall-out have built up in Arctic lichens which are the reindeer's staple diet. The reindeer have been found to concentrate the isotopes in their bodies. Animals are affected all over the Arctic, with the most radioactive reindeer in Canada, Alaska and Siberia's Taimyr Peninsula. Enormous amounts of reindeer meat — some 14,000 tonnes — are eaten in the Arctic each year. Research at the Danish Riso National Laboratory has found that reindeer herders, who consume a lot of the meat, take in 300 times more radiation each year than is the average anywhere in northern Europe. Norway's Radiation Protection Authority estimates that many hundreds of herders have died of cancer as a result. Meanwhile reindeer are emerging as one of the greatest environmental threats to the Norwegian Arctic. Over-grazing and trampling is causing more damage to the fragile tundra than pollutants from the world's worst-offending factories. Over the last 40 years the number of reindeer in the Norwegian Arctic have doubled, reaching 20 animals per square kilometre, a very high density. Research by the Norwegian and Danish geological surveys and Russia's Kola Science Centre have found that 75 percent of the moss in the Norwegian Arctic and 85 percent of lichen have been "severely damaged" by reindeer. Three-quarters of the area is suffering from soil erosion. By contrast, two of the world's most polluting factories---nickel smelters in Russia's Kola peninsula — have about 10 percent of the moss and 14 percent of the lichen in the area. Even the Saami people, who own most of the reindeer, admit that the animals may be causing problems. Lars-Ander Baer, vice-president of their council, admitted to a conference on the Arctic environment recently: "We simply don't know how many reindeer the northern part of Norway can take." Which of the following is NOT a cause of the problem under discussion？ A．Over-grazing. B．Radioactive contamination. C．Poaching. D．Trampling.

A.worry B.fear C.carelessness D.hard work

A．he employs B．he employ C．he employs that D．he employs which

M: Don't worry. We'll be there in no time. Q: What does the man mean？ (17) A．He has never been to the laboratory. B．He wants to stop and ask for directions. C．The woman won't be late. D．The program in the laboratory has already begun.

A．why B．that C．because D．for

Unlike most of the world's volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth's surface; on the contrary, many of them lie deep in the interior of a plate.

Have you ever listened to young children talking on the playground They are always boasting（） Gavin. They reached the school gates. Still Gavin said nothing. “We’ve won,” Ted said to Harry, but he spoke too soon. On the way home, Gavin said, “My Dad is ___ 小题10: __ clean that he doesn’t have to bathe at all.”

是 否