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LOS ANGELES, May 20(Xinhua)-- Peter, a Chinese American who works for the post office in Rosemead, California, said he has been attacked by dogs twice in the past 10 years while delivering mails.He said as a mail carrier, he has to walk door to door to put mails into the mailboxes of the residents, and many times the owners were not at home but their dogs were too loyal to their duties and would see mail carriers like him as intruders."It is dangerous to be a mail carrier. The enemy is not humans but animals like dogs who have been generally seen as human's best friends," Peter, who asked not to identify his full name, told Xinhua.Mail carriers in the United States feel the real danger of being attacked by dogs while delivering mails door by door.Statistics released by the U.S. Post Office showed that 5,669 postal employees were attacked by dogs in 2010 in the United States. That's an average of 11 dog attacks every delivery day, and that figure does not include the number of threatening incidents that did not result in injury.Los Angeles is the third most dangerous city in the U.S. when it comes to being a mail carrier with 44 mail carriers being attacked by dogs in 2010, according to the U.S. Post Office.San Diego in California and Columbus in Ohio tied for second place, each logging 45 dog attacks. Houston in Texas is the most dangerous city in the U.S. for mail carriers with 62 attacks in 2010.On May 25, 2010, Eddie Lin, a 33-year old Chinese American postal carrier in San Diego, was attacked by a dog while delivering mail, his head hit on the ground and died 10 days later. His death angered his family and the whole community.The daughter of the dog's owner, who identified herself as Eva, said the incident has devastated her father."We feel really bad," Eva told the local press in an interview. "It's just killing my Dad," she added.On Sept. 30, 2010, a German Shepard and a Pitbull mix attacked Hu Ruiz, a 10-year veteran of the U.S. Postal Service. He luckily recovered from puncture wounds on his arms after the two dogs attacked him as he made deliveries along Camden Avenue in San Jose, California.It is not the problem for the mail carriers only. Dogs attack other people too. Statistics showed that there are more than 4.7 million Americans bitten by dogs nationwide annually.

BEIJING, March 7 (Xinhua) -- The Chinese currency Renminbi (RMB), or the yuan, on Monday strengthened to an all-time high of 6.5651 per U.S. dollar, according to the China Foreign Exchange Trading System.Monday's central parity rate of the RMB against U.S. dollar was 20 basis points lower than the previous record of 6.5671 set on last Friday.The yuan has appreciated 3.84 percent since June 19 last year when the People's Bank of China, the central bank, announced it would further reform the exchange rate formation mechanism to improve its flexibility.On China's foreign exchange spot market, the yuan can rise or fall 0.5 percent from the central parity rate each trading day.The central parity rate of the RMB against the U.S. dollar is based on a weighted average of prices before the opening of the market for each business day.

BEIJING, Feb. 12 (Xinhua) -- A delegation of the Chinese People's Political Consultative Conference (CPPCC) left Beijing Saturday evening to visit Ghana, Rwanda and Mozambique.The delegation, led by Vice Chairman Li Zhaozhuo of the CPPCC National Committee, was invited by the Parliament of Ghana, the Rwandan Chamber of Deputies and the Parliament of Mozambique.

LOS ANGELES, April 8 (Xinhua) -- NASA's Wide-field Infrared Survey Explorer (WISE) has discovered a rare asteroid that traces out a horseshoe shape relative to Earth, the Jet Propulsion Laboratory (JPL) said on Friday.Unlike most near-Earth asteroids (NEAs) that have eccentric, or egg-shaped, orbits that take the asteroids right through the inner solar system, the new object has an orbit that is almost circular such that it cannot come close to any other planet in the solar system except Earth, JPL said.However, even though the asteroid rides around with Earth, it never gets that close, said JPL in Pasadena, Los Angeles.As the asteroid approaches Earth, the planet's gravity causes the object to shift back into a larger orbit that takes longer to go around the sun than Earth. Alternately, as Earth catches up with the asteroid, the planet's gravity causes it to fall into a closer orbit that takes less time to go around the sun than Earth, according to JPL.The asteroid therefore never completely passes our planet. This slingshot-like effect results in a horseshoe-shaped path as seen from Earth, in which the new object, designated 2010 SO16, takes 175 years to get from one end of the horseshoe to the other, JPL said."The origins of this object could prove to be very interesting, " said Amy Mainzer of JPL, the principal investigator of NEOWISE, which is the asteroid- and comet-hunting portion of the WISE survey mission. "We are really excited that the astronomy community is already finding treasures in the NEOWISE data that have been released so far."JPL manages and operates the WISE for NASA's Science Mission Directorate, Washington.