The DNA test found the murder was a 14-year-old boy.

A . Certificate of Inspection B . Classification Certificate C . Loadline Certificate D . Certificate of Documentatio

A . passed B . succeeded C . made D . got

A . Application monitoring has been configured B . Only disk heartbeat networks have been used C . Cluster nodes are attached to two IP networks D . Resource Group dependencies have been configured

A . Right B . Wrong C . Not mentioned

A . You are not an administrator B . A local system policy is implemented to hide the advance tab C . FAT32 does not support compression D . Delete and recreate the testing folder

A . the alivefish B . an alivefish C . a fishalive D . alive fishe

A、enlightening B、confusing C、frustrating D、delighting

A . nasal B . oral C . lung D . glotti

A、 in 1945 B、 in 1949 C、 in 1776 D、 in 1979 [分值:2]

A．正确 B．错误

A．of B．to C．that D．at

A．was empty B．had some money in it C．had a few coins and a photograph in it D．had an old photograph in it 此题为多项选择题。

A．A.basal lanina B．B.basal layer C．C.dermis D．D.keratinocyte layer

A．an Italian quickly walked past him B．the Italian had been far away C．he could still see the Italian

A．levels B．numbers C．amounts D．accounts

2. Yet the implication that rapid change is a new phenomenon is again misleading. If you measure the time it takes for a technology to become widely diffused, today's experience does not seem unusual. Take the car. The basic patent for an internal-combustion engine capable of powering a car was fried in 1877. By the late 1920s—50 years later—over half of all American households owned a car. 3. The comparable dates for the computer axe harder to tie down, but the first big computer, based on vacuum valves, was built in 1946. The transistor—the first semiconductor device—was invented at Bell Laboratories in 1948. The first patent for an integrated circuit was filed in 1959. Now, in 1999-50 years after the first one was built—around half of American households own a computer. The pace of introduction has been similar to that of the car. 4. You have to cheat, choosing only the date for the personal computer, say(mid-1970s), or the internet (ditto) to make it seem much more rapid. Comparing its diffusion among private users is, you might say, unfair to the computer, for that machine's main use is in businesses. On that measure, the best historical analogy is with electrification, and the spread of the electric dynamo into factories. 5. According to Paul David, a historian at Stanford University in California, the first electricity-generating stations had been installed in New York and London in 1881, but it was well into the 1920s before the dynamo became widely used and started to raise productivity. The adoption of the computer in business has also been slow, and failed to have any measurable impact on productivity until very recently.

“Breast-feeding not only has short-term benefits, but also breast-feeding has long-term benefits, ” says Bernardo Lessa Horta of the Federal University of Pelotas in Brazil, who led the study being published in The Lancet Global Health. Doctors have long known that breast-feeding can be good for a baby’s health. This is especially true in poor countries, where water can be contaminated. For instance, a baby given formula in developing countries is 14 times more likely to die in the first six months than one who’s breast-fed. In the U.S., some research has suggested that breast-feeding may raise a baby’s IQ(智商)by a few points. But a recent study with siblings(兄弟姐妹)found little advantage to breast-feeding. Horta says these previous studies didn’t follow children into adulthood to see if breast-feeding had long-term effects. So Horta analyzed data collected from 3,493 volunteers he and his colleagues have been following since birth. They are now in their 30s. First, the researchers gave the subjects IQ tests. Those who were breast-fed for 12 months or more had IQ test scores that were 3.76 points higher than those who were breast-fed for less than one month, the team found. When Horta and his colleagues looked at how much education the subjects had gotten and how much money they were making, they also found a clear difference: Those who were breast-fed the longest stayed in school for about an extra year and had monthly salaries that were about a third higher. 1. From the passage, we learn that Horta {A; B; C}. A. is from Brazil B. conducts his research in the U.S. C. has 30 researchers on his team 2. Which of the following about those who were breast-fed is NOT mentioned？{A; B; C} A. They stayed longer in school B. They were happier C. They were smarter 3. Which of the following is TRUE？{A; B; C} A. Doctors don’t understand the benefits of breast-feeding. B. Horta is concerned with water contamination in poor countries. C. Horta’s research project lasted about 30 years 4. The word contaminated in Paragraph 3 is closest in meaning to {A; B; C}. A. finished B. interested C. polluted 5. Which of the following is an appropriate title for this passage？{A; B; C} A. Researchers Have Pointed Out the Disadvantages of Breast-feeding B. Researchers Have Found Out the Shortcomings of Formula C. Breast-feeding Improves Chances of Success