单选题Whataretheytalkingabout?A.Aquiz.B.ATVprogram.C.Textbooks.

单选题{{B}}C{{/B}} You want to know where the safest place for young children is in the car? Experts all say the back seat is the safest place for a child of any age. In the back seat, the child is farthest away from the force or effect of a head-on collision (迎头撞击) , which can cause the most injuries. Just as important, the child in the back seat is removed from the passenger airbag, if there is any. If your child is under eight years of age and weighs more than 80 pounds, it is necessary to fit your car with a special child-safety seat. The child-safety seat comes in three types or sizes: The first type is designed for babies from birth to one year of age, until the baby weighs about 20 pounds; the second size is for children between one and four years of age, who weigh between 20 and 40 pounds; the third kind is used by older children big enough to use the car's belt system. Moreover, all these safety seats must be fitted and held in place on the car's back seat. If your child does need your attention while. you are driving, don't look back with only one hand on the wheel. Just pull over.

单选题--How ______ can you finish the drawing?--In about half an hour.

单选题Nick had an unusually clever mind, so his success had been ______ and never in doubt.[A] hoped[B] expected[C] promised[D] asked

单选题 Thousands of years ago man used handy rocks for his surgical operations. Later he used sharp bone or horn, metal knives and more recently, rubber and plastic. In the 1960s a new tool was developed, one which was, first of all, to be of great practical use to the armed forces and industry, but which was also to revolutionize the art and science of surgery. The tool is the laser and it is being used by more and more surgeons all over the world. As we all know, light is hot, and any source of light will give warmth. But light is usually spread out over a wide area. The light in a laser beam, however, is concentrated. This means that a light with no more power than that produced by an ordinary electric light bulb becomes intensely strong as it is concentrated to a pinpoint-sized beam. Experiments with these pinpoint beams showed researchers that different energy sources produce beams that have a particular effect on certain living cells. It is now possible for eye surgeons to operate on the back of human eye without harming the front of the eye, simply by passing a laser beam right through the eye-ball. Operations which once left patients exhausted and in need of long period of recovery time now leave them feeling relaxed and comfortable. The rapid development of laser techniques in the past ten years has made it clear that the future is likely to be very exciting. Perhaps some cancers will be treated with laser in a way that makes surgery not only safer but also more effective.

单选题The door. We'd better have it repaired.

单选题[此试题无题干]

单选题According to a recent US survey, children spent up to 25 hours a week ______ TV. A．to watch B．watching C．watch D．watched

单选题Wheredoesthisconversationtakeplace?

单选题Whatarethetwospeakerstalkingabout?

单选题One night, a little before nine o'clock, Dr. Johnson was answering a telephone call. He was asked to go and give an operation to a very sick boy at once. The boy was in a small hospital in Glens Falls, sixty miles away from Dr. Johnson's city—Albany. The boy had hurt himself in a traffic accident. His life was in danger, but his family was so poor that they could not pay the doctor anything. After he heard all this, Dr. Johnson was driving carefully. He thought that he could get to the hospital before 12 o'clock. A few minutes later, the doctor's car had to stop for a red light at a crossing. Suddenly a man in an old black coat opened the door of the car and got in. "Drive on" ,he said. "I've got a gun(枪). " "I'm a doctor," said Johnson. "I'm on my way to a hospital to operate on a very sick... " "Don't talk," said the man in the old black coat. "Just drive. " A mile out of the town he ordered the doctor to stop the car and get out. Then the man drove on down the road. The doctor stood for a moment in the snow. A half hour, Dr. Johnson found a telephone and called a taxi (出租车). At the railway (铁路) station he learned that the next train to Glens Falls would not leave until 12 o'clock. It was after two o'clock in the morning when the doctor arrived at the hospital in Glens Falls. Miss Clarke, a nurse, was waiting for him. "I did my best," said Dr. Johnson. Miss Clarke said. "The boy died an hour ago. " They walked into the waiting room. There sat the man in the old black coat, with his head in his hands. "Mr. Shute," said Miss Clarke to the man," this is Dr. Johnson. He had come all the way from Albany to try to save your boy. /

单选题When we met Mr. Smith last year, he ______ in that school for ten years. A. taught B. was teaching C. had taught D. would teach

单选题I'll never forget the hotel ______ last year. A. I stayed B. that l stayed C. I stayed at D. where I stayed at

单选题By going in person to the office which ______ the forms, she was able to get what she wanted.

单选题While ______ in China, the young man picked up some Chinese.[A] staying[B] stay[C] stayed[D] to stay