Article: You're on the third lap around the car park, there are no open spaces, and you're already 15 minutes late for your appointment. Right now you're wishing you could jump out of the car and let it go to find its own spot. Now there's an app for that. Virtual Valet lets your smartphone tell your car to park without you in it. "You pull up to the roadside, push a button on your smartphone and the car takes care of everything else," says Aeron Steinfeld, the lead researcher for the project at Carnegie Mellon University in Pittsburgh, Pennsylvania. To find its own spot, the system uses a sensor suite similar to ones found in many luxury cars. This includes a motion sensor that scans for moving cars and pedestrians, and a forward-facing laser rangefinder normally found in adaptive cruise control to determine the distance of objects in front of the car. Information from these sensors is then fed to an onboard computer to plot the vehicle's course. The users can watch the whole process from their phone. Better still, it will be affordable. The team has spent the last year moving from high-end imaging and processing equipment to less expensive components. In experiments, the vehicle was able to navigate through a crowded parking structure, find an empty spot, and park all on its own. And the greatest appeal of the Virtual Valet Parking App is that it requires no change to existing parking facilities or infrastructure. For the moment, the only car equipped for control by Virtual Valet is Carnegie Mellon' modified Jeep Wrangler, which the researchers have named NavLab11. But Steinfeld hopes that major car manufacturers will adopt the technology. It might be more than technology that holds up the show, however. Self-driving cars have been licensed in only three US states -- California, Nevada and Florida -- and it's unclear how this app would agree with self-driving laws. Until these questions are settled, your insurance provider might be unwilling to cover a ding from a parking incident. Question: We can infer from the text that _ . Yes or no, is the answer "there will be some difficulty in promoting the technology"?
Yes

Article: This afternoon, my office sent out over 34,000 e-mail notifications to high school seniors who were waiting to learn whether they would be invited to spend the next four years at Stanford. Even though I have been in the admission field for over 30 years, I still feel the pain of the many exceptional youths who were not offered places. Given that todays teens already have enough pressure in their lives, I wish to impart three messages to any particularly disappointed parents. First, it's all relative. While the number admitted into the undergraduate class has remained unchanged for years, Stanford, like many of its peer schools, has had a record number of total applicants more than 42,000. Regardless of arguments over whether too much preference is given to one category over another, thousands of students are going to be turned away, and there is no doubt that the vast majority of them could have met the demands of a Stanford education. I wish there were a formula to explain who is accepted and who isn't, but the decision-making is as much art as it is science. Each class is a symphony with its own distinct composition and sound. The final roster is an effort to create harmony , and that means that some extraordinary bass players don't get a chair. What's more, even among my staff there are legitimate differences about applicants. Second, celebrate the bigger picture. Most of the applications I reviewed are truly remarkable. The transition from high school to college is a turning point, and it's more important to focus on how a young adult is moving on to a new stage than where that stage happens to be. You should mark the success of your children and rejoice in the excitement that the next four years will bring. And that leads to my final point: education is what a student makes of it. Of course, certain schools have resources that others don't, but they all offer opportunities to learn and to grow. Thousands of applicants who arent accepted to Stanford go on to have fulfilling lives.... Question: What is the main purpose of the article? Yes or no, is the answer "To tell parents that there is no need to feel down if their children werent admitted to Stanford."?
Yes

Q: Article: We often use the words "growth" and "development" as if they meant basically the same thing. But this may not always be the case. One can easily imagine instances in which a country has achieved higher levels of income (growth) with little or no benefit coming to most of its citizens (development). In the past, most development policies were aimed at increasing the growth rate of income per capita . Many are still based on the theory that benefit of economic growth will come to all members of society. If this theory is correct, growth should encourage development. By the early 1970s, however, the relationship between growth and development was being questioned. A major study by the World Bank in 1974 concluded that it is now clear that more than decades of rapid growth in developing countries has been of little benefit to a third of their population. The World Bank study showed that increase in GNP per capita did not promise important improvements in such development indicators as nutrition, health, and education. Although GNP per capita did indeed rise, its benefit came down to only a small part of the population. This realization gives rise to a call for new development policies. These new policies favor agriculture over industry, call for national redistribution of income and wealth, and encourage programs to satisfy such basic needs as food and shelter. In the late 1970s and early 1980s the international macroeconomic crises of high oil prices, worldwide recession and the third world debt, forced attention away from programs designed to get rid of poverty. However, the lesson remains: economic growth does not promise economic development. Efforts may be required to change growing output capacity into economic benefit that reaches most of a nation's people. Question: According tothe study by the World Bank in 1974, economic growth in some backward countries brought _ . Yes or no, is the answer "benefit to two thirds of their population"?
A: No

*Question*
Article: Can people change their skin color1 without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin color1. The gene comes in two versions, one of which is found in 99 percent of Europeans. The other is found in 93 to 100 percent of Africans, researchers at Pennsylvania State University report in the latest issue of science. Scientists have changed the color1 of a dark-striped zebrafish to uniform gold by inserting a version of the pigment gene into a young fish. As with humans, zebrafish skin color1 is determined by pigment cells, which contain melanin . The number, size and darkness of melanin per pigment cell determine skin color1. It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation in the gene for melanin production. This results in less pigmented skin. However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes. Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun , which can cause skin cancer. But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng. "Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin color1," said Cheng. The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin color1 without damaging it like chemical treatment did on Michael Jackson. ks5u Question: Scientists have done an experiment on a dark-striped zebrafish in order to _ . Yes or no, is the answer "prove the humans' skin color1 is similar to that of zebrafish in its formation"?
**Answer**
No