Article: O. Henry, born in Greensboro, North Carolina, was the pen name of William Sydney Porter. His father, Algernon Sydney Porter, was a physician. When William was three years old, his mother died, and he was raised by his grandmother and aunt. William was a good reader, but at the age of fifteen he left school, and worked in a drug store and later on a Texas farm. After that, he moved to Houston, where he had a number of jobs, including that of bank clerk. After moving to Austin, Texas, in 1882, he married. In 1884 he started a humorous weekly The Rolling Stone. When the weekly failed, he joined The Houston Post as a reporter and columnist . In 1897 he was put into prison over some financial dealings. While in prison, William started to write short stories to earn money to support his daughter Margaret. His first work, Whistling Dick's Christmas Stocking(1899), appeared in McClure's Magazine. After serving three years of the five years' sentence,he changed his name to O. Henry, hoping to forget his bitter past. O. Henry moved to New York City in 1902 and from December 1903 to January 1906 he wrote a story a week for the New York World, and also published the stories in other magazines. His first collection, Cabbages and Kings, appeared in 1904. Many other works quickly followed, such as The Gift of the Magi and The Furnished Room. O. Henry's best- known work is The Ransom of Red Chief. His stories always have surprising endings. He published 10 collections and over 600 short stories during his lifetime. O. Henry's last years were shadowed by drinking, ill health, and financial problems. In 1907, he experienced a failed marriage. In 1910, O. Henry died after an illness. Question: It can be inferred from the passage that O. Henry _ . Yes or no, is the answer "had little parental love as a child"?
No

Article: As motorways become more and more blocked up with traffic, a new generation on flying cars will be needed to ferry people along skyways. That is the conclusion of engineers from the US space agency and aeronautical firms, who _ future commuters traveling by "skycar". These could look much like the concept skycar shown in the picture, designed by Boeing research and development. However, such vehicles could be some 25 years from appearing on the market. Efforts to build flying vehicles in the past have not been very successful. Such vehicles would not only be expensive and require the skills of a trained pilot to fly, but there are significant engineering challenges involved in developing them. "When you try to combine them you get the worst of both worlds: a very heavy, slow, expensive vehicle that's hard to use," said Mark Moore, head of the personal air vehicle(PAV) division of the vehicle systems program at Nasa's Langley Research Center in Hampton, US. But Boeing is also considering how to police the airways and prevent total pandemonium -if thousands of flying cars enter the skies. "The neat, gee-whiz part is thinking about what the vehicle itself would look like," said Dick Paul, a vice president with Phantom Works, Boeing's research and development arm. "But we're trying to think through all the consequences of what it would take to deploy a fleet of these." Past proposals to solve this problem have included artificial intelligence systems to prevent collisions between air traffic. Nasa is working on flying vehicles with the initial goal of transforming small plane travel. Small planes are generally costly, loud, and require months of training and lots of money to operate, making flying to work impractical for most people. But within five years, Nasa researchers hope to develop technology for a small plane that can fly out of regional airports, costs less than $100,000(PS55,725), is as quiet as a motorcycle and as simple to operate as a car. Although it would not have any road-driving capabilities, it... Question: When engineers develop the skycars, they have to deal with the following difficulties except _ . Yes or no, is the answer "how to fly the skycars to enter skies"?
Yes

Article: About influenza A(H7N9) virus What is the influenza A(H7N9) virus? Influenza A H7 viruses are a group of influenza viruses that normally spread among birds. The influenza A(H7N9) virus is one smaller group among the larger group of H7 viruses. Although some H7 viruses (H7N2, H7N3 and H7N7) have sometimes been found to infect humans, no human infections with H7N9 viruses have been reported until recent reports from China. What are the main signs of human infection with influenza A(H7N9) virus? So far, most patients with this infection have had severe pneumonia . Signs include fever, cough and shortness of breath. However, information is still limited about the full area of disease that infection with influenza A(H7N9) virus might cause. How did people become infected with the influenza A(H7N9) virus? Some of the confirmed cases had connections with animals or with an animal environment. The virus has been found in a pigeon in a market in Shanghai. It is not yet known how persons became infected. The possibility of animal-to-human spread is being looked into. Is it safe to eat meat like chicken and pork products? Influenza viruses are not spread through eating well-cooked food. Because influenza viruses are made inactive by normal temperatures used for cooking (so that food reaches 70degC in all parts), it is safe to eat properly prepared and cooked meat. Diseased animals and animals that have died of diseases should not be eaten. In areas experiencing outbreaks, meat products can be safely eaten only if they are properly cooked and properly handled during food preparation. The eating of raw meat and uncooked blood-based dishes is a high-risk practice and should be discouraged. Is it safe to travel to China? The number of confirmed cases in China is very low. WHO does not advise the application of any travel measures with respect to visitors to China, nor to persons leaving China. Are Chinese products safe? There is no evidence to link the present cases with any Chinese products. WHO advises that people... Question: People infected with the influenza A(H7N9) virus may suffer from _ . Yes or no, is the answer "hard breathing"?
No