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BEIJING, Feb. 14 (Xinhuanet) -- The exchange rate against the US dollar is currently at an appropriate level but could fluctuate in the future, Yi Gang, vice-governor of the central bank and head of the State Administration of Foreign Exchange, said on Sunday."In the future, as markets fluctuate and labor productivity changes, the rate will certainly show some fluctuation," he said at a seminar. Last Thursday, the yuan's central parity rate rose to a record high of 6.5849 against the US dollar, after rising for three consecutive trading days, before declining to 6.5952 on Friday.The yuan has appreciated about 3.6 percent against the dollar since mid-June. A report from the US Treasury said earlier that on an inflation-adjusted basis, the appreciation was even higher, at an annual rate of more than 10 percent.US Federal Reserve Chairman Ben Bernanke said last Wednesday that China's recent measures to control inflation by raising interest rates is "surprising" and urged Beijing to let its currency rise in value.Currently the exchange rate is still underestimated by no more than 10 percent, said Lu Mai, secretary-general of the China Development Research Foundation (CDRF).The resilience of exporters to the rising yuan is stronger than previously estimated, which helps to pave the way for more currency reform to liberalize the yuan, he said.In 2007 and 2008, the Chinese currency rose by 7 percent annually against the US dollar, but China's GDP only declined by 0.28 percentage points, with inflation down by 0.42 points and workers' wages up by 0.07 points, according to CDRF research."The figures showed that progressive currency reform since July 2005 was successful, and the government should accelerate the reform and further free the yuan in the next five years to promote healthy, long-term economic development," Lu said.China should keep the proportion of its trade surplus to GDP within 5 percent, and avoid further increasing its huge foreign exchange reserves to allow the currency to settle at a balanced level, he said.China's foreign reserves rose to a record .85 trillion at the end of last year, an 18.7 percent increase year-on-year, according to statistics from the People's Bank of China, the central bank.Yi said he took note of the CDRF findings, but emphasized that further moves depended on both the domestic and international economic situation and appropriate timing.Lu Feng, an economist at Peking University, said now is the right time to deepen currency reform and let the yuan trade at a higher price as inflation is rising.Analysts have predicted that the yuan will appreciate this year as inflation may see the government opt for a rising yuan to lower the cost of purchasing international commodities.Lian Ping, chief economist at the Bank of Communications, predicted the yuan would rise by 5 to 7 percent in 2011.

WASHINGTON, Jan. 20 (Xinhua) -- Visiting Chinese President Hu Jintao on Thursday called upon the U.S. Congress to continue helping the two countries boost their relations.Pursuing a healthy and steady development of China-U.S. ties is China's established policy and strategic choice, Hu stressed in talks here with Speaker John Boehner of the House and Majority leader Harry Reid of the Senate.It has also been the consensus of the U.S. administrations, whether Republican or Democratic, since the two countries established formal diplomatic relations 32 years ago, he added.Chinese President Hu Jintao (2nd L front) meets with U.S. Senate Majority Leader Harry Reid (2nd R front) on Capitol Hill in Washington, the United States, Jan. 20, 2011Thanks to the two nations' concerted efforts, the China-U.S. relationship has been moving forward steadily, Hu said, citing the two countries' increasing cooperation and coordination on trade, terrorism, climate change, Korean Peninsula denuclearization and other bilateral, regional and global issues.A sound relationship between Beijing and Washington not only serves the fundamental interests of both peoples, but greatly contributes to the peace, stability and prosperity of the Asia-Pacific region and beyond, the Chinese president said.With China and the United States differing in culture, social system and development level, it is normal for the two sides to have differences on some issues, he said.But what matters most is the common interests of the two countries, he stressed, saying that Beijing's position is that the two sides should seek common ground while reserving differences, so as to learn from each other and pursue common prosperity on the basis of mutual respect and equality.

LOS ANGELES, May 6 (Xinhua) -- Limiting prolonged bottle use in children may be an effective way to help prevent obesity, a new study suggests.For the study, researchers from the Center for Obesity Research and Education at Temple University (CORETU) and the Ohio State University College of Public Health analyzed data from 6,750 children to estimate the association between bottle use at 24 months of age and the risk of obesity at 5.5 years of age, according to the Science Daily on Friday.Of the children studied, 22 percent were prolonged bottle users, meaning that at two years of age they used a bottle as their primary drink container and/or were put to bed with a calorie- containing bottle.The findings showed that nearly 23 percent of the prolonged bottle users were obese by the time they were 5.5 years old."Children who were still using a bottle at 24 months were approximately 30 percent more likely to be obese at 5.5 years, even after accounting for other factors such as the mother's weight, the child's birth weight, and feeding practices during infancy," said Dr. Robert Whitaker at CORETU, lead author of the study.Drinking from a bottle beyond infancy may contribute to obesity by encouraging the child to consume too many calories, the researchers noted."A 24-month-old girl of average weight and height who is put to bed with an eight-ounce bottle of whole milk would receive approximately 12 percent of her daily caloric needs from that bottle," explained co-author Rachel Gooze.Gooze noted that weaning children from the bottle by the time they are one year of age is unlikely to cause harm and may prevent obesity. The authors suggested that pediatricians and other health professionals work with parents to find acceptable solutions for stopping bottle use at the child's first birthday.The findings adds new evidence to the theory that obesity prevention should begin before children enter school, the researchers said.

SAN FRANCISCO, April 27 (Xinhua) -- Apple Inc. on Wednesday denied the alleged location-tracking practice of its mobile operating system, saying it will release software updates to make iPhone store less location information to quell public concerns over privacy.CLARIFICATION"Apple is not tracking the location of your iPhone. Apple has never done so and has no plans to ever do so," the company said in a statement."Users are confused, partly because the creators of this new technology (including Apple) have not provided enough education about these issues to date."According to the statement, the location data researchers saw on iPhone is a database of Wi-Fi hotspots and cell towers around users' current location that Apple is maintaining to help iPhone rapidly and accurately calculate its location when requested. It noted Apple cannot locate iPhone users based on Wi-Fi hotspot and cell tower data as the information is in an anonymous and encrypted form.Apple admitted that part of the location data (Wi-Fi hotspots and cell towers) is backed up on iTunes, which means it could be possible that people with access to iPhone users'computer may get their location information. It said a software update has been planned to cease the backing-up.It is also planning to provide an update to limit the data storage on iPhone, in response to questions that the device has been storing location data since the release of iOS 4 operating system last June.Apple said it is a bug that iPhone keeps storing location data even if its location services are disabled, noting it will fix this through a software update in the coming weeks.The company also reiterated its focus on personal information security and privacy."Pretty much what I expected at this stage. The response is measured and the update should fix the problem," Alasdair Allan, one of the two British researchers who first announced the discovery of stored location data on iPhone, said on his Twitter account.ALLEGATIONThe statement on Wednesday is Apple's first official response to the location-tracking allegations.Worries on the iPhone tracking issue first surfaced last Wednesday when two British researchers announced at a technology conference in California that iPhone has been collecting users' location information and storing the data since June 21, 2010.Last Friday, The Wall Street Journal reported its security analysts had found that Apple's iPhone and smartphones running Google's Android operating system regularly transmit users' locations back to the two companies respectively, which is part of their race to build databases capable of pinpointing people's locations via smartphones.The newspaper then reported on Sunday that its analysts had also found iPhone is collecting and storing user's location data even when location services are turned off.PRESSUREThe Cupertino, California-based company has been facing mounting pressure from lawmakers, customers as well as media reports following the revelations.The U.S. House Energy and Commerce Committee on Monday sent letters to six developers of mobile device operating systems, including Apple and Google, demanding Apple's explanation on implications of alleged tracking for individual privacy and federal communications policy.Also on Monday, Minnesota Senator Al Franken, chairman of the U. S. Senate Judiciary Subcommittee on Privacy, Technology and the Law, announced he had scheduled a mobile privacy hearing on May 10 and asked representatives from Apple and Google to speak at the hearing.Meanwhile, Lisa Madigan, Attorney General of U.S. state of Illinois, on Monday called for a meeting with Apple and Google executives on the location-tracking reports, citing her ongoing effort to protect consumers' personal information online.Last Friday, two iPhone users filed a class action suit against Apple in Tempa, Florida, accusing the company of invasion of privacy and computer fraud and seeking a judge's order to bar the alleged data collection.Last Thursday, U.S. congressman Edward Markey asked Apple CEO Steve Jobs to make a response within 15 business days or no later than May 12, saying "Apple needs to safeguard personal location information of its users to ensure that an iPhone doesn't become an iTrack."On Saturday, Markey called for a congressional investigation into the privacy practices of Apple and Google. In a statement, he made clear that he thinks the data collection is potentially dangerous, saying predators could have hacked into an iPhone or Android phone to find out children's location information.Apple is also reportedly being investigated in South Korea, France, Germany and Italy over the alleged tracking practice.

BEIJING, May 12 (Xinhuanet) -- Italian archaeologists are digging the remains of Lisa Gherardini, a 16th-century woman who is widely believed to be the model for the famous portrait Mona Lisa, AFP reported on Wednesday.The team of historians say they will try to find the remains using geo-radar equipment and then try to re-create a likeness of what the woman, Lisa Gherardini, would have looked like to compare her to Leonardo Da Vinci's Mona Lisa.Gherardini (1479-1542), also known by her married name as Lisa del Giocondo, was the wife of a Florentine silk merchant and is widely believed to have been the model for the  portrait that now hangs in the Louvre in Paris.But the issue has never been settled definitively and mystery still shrouds the model's enigmatic expression and other details of the portrait.

来源：资阳报