单选题When a great deal of word processing is carried out, standard letters and documents can be stored at once.A. brokenB. outdatedC. carried backD. performed

单选题Lower taxes would spur investment and help economic growth.

单选题Kan was {{U}}abducted{{/U}} because he was the only witness.

单选题Mother Nature Shows Her Strength Tornadoes and heavy thunderstorms moved across the Great Lakes and into Trumbull County on Saturday evening. The storms were dramatic and dangerous. George Snyder was driving the fire truck down Route 88 when he first noticed that a funnel cloud was behind him. "I stopped the truck and watched the funnel cloud. It was about 100 feet off the ground and I saw it go up and down for a while. It was moving toward Bradley Road and then suddenly it disappeared." Snyder said. Snyder only saw one of the funnel clouds that passed through northeastern Ohio on Saturday. In Trumbull County, a tornado turned trees onto their sides. Some trees fell onto houses and cars. Other trees fell into telephone and electrical wires as they went down. Amanda Symcheck was having a party when the storm began. "Knew something was wrong," she said. "I saw the sky go green and pink. Then it sounded like a train rushing toward the house. I started crying and told everyone to go to the basement for protection." The tornado caused a lot of damage to cars and houses in the area. It will take a long time and much money to repair everything. There was also serious water damage from the thunderstorms. The heavy rains and high wind caused the power to go out in many homes. The storms caused serious flooding in areas near the river. More than four inches of rain fell in parts of Trumbull County. The river was so high that the water ran into streets and houses. Many streets had to be closed to cars and trucks because of the high water. This made it difficult for fire trucks, police cars and other rescue vehicles to help people who were in trouble. Many people who live near the river had to leave their homes for their own safety. Some people reported five feet of water in their homes. Local and state officials opened emergency shelters for the people who were evacuated. The Red Cross served meals to them. "This was a really intense storm," said Snyder. "People were afraid. Mother nature can be fierce. We were lucky this time. No one was killed."

单选题Very often bacteria or viruses inhabit the body without causing illness, a condition known as the "carrier state".

单选题The （odd ）thing was that he didn't recognize me.

单选题Grouping stars by constellations is a handy way of mapping the sky.

单选题Our lives are intimately bound up with theirs.

单选题Ammonia, one of the earliest known nitrogen compounds,was originally produced by distilling organic materials.

单选题The little girl {{U}}grasped{{/U}} her mother's arm as she crossed the street.

单选题It"s impolite to cut in when two persons are holding a conversation.

单选题The American antelope possesses remarkable powers of sight and can pinpoint potential danger at tremendous distances.A. spotB. relayC. attachD. sustain

单选题Researchers in the Netherlands used ferrets to study the transmission of H1N1 and found that the disease was efficiently transmitted by small airborne particles. An earlier study examining a different flu strain in guinea pigs found that the animals did not pick up the vires from contaminated cages. That suggests that you're not really safer from the flu virus if you scrub your hands, paws, or cages because the virus travels through the air. While there's not enough evidence to conclusively say the flu works the same way for humans, the current research suggests that the H1N1 flu travels mostly by air. not via hand - to - hand contact - and therefore won't be prevented through hand - washing. According to the study of researchers in the Netherlands, H1N1 viruses are transmittedA. through hand - to - hand contact.B. through the air.C. through skin contact.D. through coughin

单选题Smoking is considered dangerous to the health. Our tobacco--seller, Mr. Johnson, therefore, always asks his customers, if they are very young, whom the cigarettes are bought (51) . One day, a little girl whom he had never seen before walked (52) into his shop and demanded twenty cigarettes. She had the (53) amount of money in her hand and seemed very sure of herself. Mr. Johnson was so (54) by her confident manner that he (55) to ask his usual question. (56) , he asked her what kind of cigarettes she wanted. The girl replied (57) and handed him the money. While he was giving her the change, Mr. Johnson said laughingly that (58) she was so young she should (59) the packet in her pocket in case a policeman saw it. (60) , the little girl did not seem to find this very funny. Without (61) smiling she took the (62) and walked towards the door. Suddenly she stopped, turned (63) , and looked steadily at Mr. Johnson. There was a moment of silence and the tobacco-seller (64) what was going to say. All at once, in a clear, (65) voice, the girl declared, " My dad is a policeman," and with that she walked quickly out of the shop.

单选题"I didn"t mean to upset you," he said mildly .

单选题The city has decided to do away with all the old buildings in its centre. A. get rid of B. set up C. repair D. paint

单选题She's extremely competent and {{U}}industrious{{/U}}. A. hardworking B. honest C. objective D. independent

单选题Milk That Paid a Medical Bill One day, a poor boy who was selling goods from door to door to pay his way through school found he had only one thin dime (10分钱) left, and he was hungry. He decided he would ask for a meal at the next house. However, he lost his nerve when a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked hungry so she brought him a large glass of milk. He drank it slowly, and then asked, "How much do I owe you? You don"t owe me anything," she replied. "Mother has taught us never to accept pay for a kindness." He said, "Then I thank you from my heart." As Howard Kelly left that house, he not only felt stronger physically, but his faith in God and man was strong also. He had been ready to give up and quit. Years later that young woman became critically ill. The local doctors were baffled (感到困惑). They finally sent her to the big city, where they called in specialists to study her rare disease. Dr. Howard Kelly was called in for the consultation. When he heard the name of the town she came from, a strange light filled his eyes. Immediately he rose and went down the hall of the hospital to her room. Dressed in his doctor"s gown he went in to see her. He recognized her at once. He went back to the consultation room determined to do his best to save her life. From that day he gave special attention to the case. After a long struggle, the battle was won. Dr. Kelly requested the business office to pass the final bill to him for approval. He looked at it; then wrote something on the edge and the bill was sent to her room. She feared to open it, for she was sure it would take the rest of her life to pay for it all. Finally she looked, and something caught her attention on the side of the bill. She read these words: "Paid in full with one glass of milk." Tears of joy flooded her eyes as her happy heart prayed: "Thank You, God, that Your love has spread abroad through human hearts and hands."

单选题Her behavior is extremely childish. A. simple B. immature C. beautiful D. foolish

单选题Smoking Can Increase Depressive Symptoms in Teens While some teenagers may puff on cigarettes to "self-medicate" against the blues, scientists at the University of Toronto and the University of Montreal have found that smoking may actually (51) depressive symptoms in some teens. "This observational study is one of the few to examine the perceived (52) benefits of smoking among teens," says lead researcher Michael Chatom, a research associate at the Ontario Tobacco Research Unit of the University of Toronto. " (53) cigarettes may appear to have self-medicating (54) or to improve mood, in the long term we found that teens who started to smoke reported higher depressive symptoms." As part of the study, some 662 high school teenagers completed up to 20 questionnaires (55) their use of cigarettes to affect mood. Secondary schools were selected to provide a mix of French and English participants, urban and rural schools, and schools (56) in high, moderate and low socioeconomic neighborhoods. Participants were divided into three (57) : never smokers; smokers who did not use cigarettes to self-medicate, improve mood or physical (58) ; smokers who used cigarettes to self-medicate. Depressive symptoms were measured using a scale that asked how felt too fired to do things: had (59) going to sleep or staying (60) ; felt unhappy, sad, or depressed; felt hopeless about the future; felt vexed, antsy or tense; and worried too much about things. "Smokers who used cigarettes as mood (61) had higher risks of elevated depressive symptoms than teens who had never smoked," says co-researcher Jennifer O'Loughlin, a professor at the University of Montreal Department of Social and Preventive Medicine. "Our study found that teen smokers who reported emotional benefits from smoking are at higher risk of (62) depressive symptoms." (63) between depression and smoking exists (64) among teens that use cigarettes to feel better. "It's (65) to emphasize that depressive symptom scores were higher among teenagers who reported emotional benefits from smoking after they began to smoke," says Dr. Chaiton.