单选题The construction of the bridge is said to have been terminated .

单选题The great changes of the city astonished every visitor to that city.

单选题The oscillator was easier to use, more stable, and less expensive than others available at the time. A. changeable B. unchanging C. diverse D. strong

单选题He had merely come out for a {{U}}stroll. {{/U}}

单选题Eat Healthy "Clean your plate!" and "Be a member of the clean-plate club!" Just about every kid in the UK has heard this from a parent or grandparent. Often, it"s 1 by an appeal: "Just think about those starving orphans in Africa!" Sure, we should be 2 for every bite of food. Unfortunately, many people in the UK take too many bites. Instead of staying "clean the plate", perhaps we should 3 some food for tomorrow. According 4 the news reports, UK restaurants are partly to blame for the growing bellies(肚子). A waiter puts a plate of food in front of each customer, with two to four times the 5 recommended by the government, according to a UK Today story . The British traditionally 6 quantity with value and most restaurants try to give them that. They prefer to have customers complain 7 too much food rather than too little. Barbara Rolls, a nutrition professor at London University, told the Times that restaurant portion sizes began to grow in the 1970s, the same time that the British waistline began to 8 . Health experts have tried to get ninny restaurants to 9 smaller portions. Now, apparently, some customers are calling 10 this too. The restaurant industry trade magazine QSR reported last month that 57 percent of more than 4,000 people 11 believe restaurants serve portions that are too large; 23 percent had no opinion; 20 percent disagreed. But a closer 12 at the survey indicates that many Americans who can"t afford fine dining still prefer large portions. Seventy percent of 13 earning at least $150,000 per year prefer smaller portions; but only 45 percent of those earning less than $25,000 want smaller. It"s not 14 working class Americans don"t want to eat healthy. It"s just that, after long hours at low-paying jobs, getting less on their plate hardly seems like a good 15 . They live from paycheck to paycheck, happy to save a little money for next year"s Christmas presents.

单选题The audience {{U}}applauded{{/U}} enthusiastically after the performance at the Grand Old Opera.

单选题I had to raise my voice to make myself heard over the noise.A. changeB. increaseC. lowerD. rise

单选题The salesman approached the house cautiously because of the vicious dog.A. nervouslyB. bravelyC. carefullyD. deliberately

单选题We were {{U}}relieved{{/U}} to hear that you had arrived safely.

单选题What makes a mayor successful in Los Angeles is the Ustrength/U of his public support.

单选题If I made a mistake, I will try to {{U}}remedy{{/U}} it. A. clarify B. diagnose C. evaporate D. correct

单选题Every country represented in the Olympics has a National Olympic Committee that selects the athletes who compete in the games.

单选题Careful {{U}}consideration{{/U}} should be given to issues of health and safety. A. thought B. mind C. account D. memory

单选题They always mock me because I am ugly.

单选题Gypsies When school was out, I hurried to find my sister and get out of the schoolyard before seeing anybody in my class. But Barbara and her friends had beaten us to the playground entrance and they seemed to be waiting for us. Barbara said, "So now you're in the A class. " She sounded impressed. "What's the A class?" I asked. Everybody made superior yet faintly envious giggling sounds. "Well, why did you think the teacher moved you to the front of the room, dopey? Didn't you know you were in the C class before, way in the back of the room?" Of course I hadn't known. The Wenatchee fifth grade was bigger than my whole school which had been in North Dakota, and the idea of subdivisions within a grade had never occurred to me. The subdividing for the first marking period had been done before I came to the school, and 1 had never, in the six weeks I'd been there, talked to anyone long enough to find out about the A, B, and C classes. I still could not understand why that had made such a difference to Barbara and her friends. I didn't yet know that it was shameful and dirty to be a transient laborer and ridiculous to be from North Dakota. I thought living in a tent was more fun than living in a house. I didn't know that we were gypsies, really (how that thought would have excited me then!), and that we were regarded with the suspicion felt by those who plant toward those who do not plant. It didn't occur to me that we were all looked upon as one more of the untrustworthy natural phenomena, drifting here and there like mists or winds. I didn't know that I was the only child who had camped on the Baumann's land ever to get out of the C class. I didn't know that school administrators and civic leaders held conferences to talk about the problem of transient laborers. I only knew that for two happy days I walked to school with Barbara and her friends, played hopscotch and jumped rope with them at class intervals, and was even invited into the house for some ginger ale—a strange drink I had never tasted before.

单选题To slow down eye damage，people with diabetes should try to

单选题He still did well at school ______ taking a part - time jobs now and then.A. in spite ofB. regardingC. on account ofD. in case of

单选题The history of cancer research has shown that

单选题His idea to solve the problem is really original.A. creativeB. greatC. practicalD. perfect

单选题Egypt Felled by Famine Even ancient Egypt's mighty pyramid builders were powerless in the face of the famine that helped bring down their civilization around 2180 BC. Now evidence gleaned from mud deposited by the River Nile suggests that a shift in climate thousands of kilometers to the south was ultimately to blame and the same or worse could happen today. The ancient Egyptians depended on the Nile's annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods. Dwindling rains in the Ethiopian highlands would have meant fewer plants to stablize the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment from the White Nile. The Blue Nile mud has a different isotope signature from that of the White Nile. So by analyzing isotope differences in mud deposited in the Nile Delta, Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river. Krom reasons that during periods of drought, the amount of the Blue Nile mud in the river would be relatively high. He found that one of these periods, from 4,500 to 4,200 years ago, immediately predates the fall of the Egypt's Old Kingdom. The weakened waters would have been catastrophic for the Egyptians. " Changes that affect food supply don't have to be very large to have a ripple effect in societies," says Bill Ryan of the Lamont Doberty Earth Observatory in New York. "Similar events today could be even more devastating," says team member Daniel Stanley, a geoarchaeologist from the Smithsonian Institution in Washington, D C. " Anything humans do to shift the climate belts would have an even worse effect along the Nile system today because the populations have increased dramatically. /