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WASHINGTON - China warned the United States on Thursday against "groundless smear attacks" against Chinese products and said it was working responsibly to address concerns over a spate of recent food safety scares. "The Chinese Government has not turned a blind eye or tried to cover up. We have taken this matter very seriously, acted responsibly and immediately adopted forceful measures," said a statement by China's embassy in Washington. "Blowing up, complicating or politicizing a problem are irresponsible actions and do not help in its solution," the Chinese mission said in a rare policy pronouncement. "It is even more unacceptable for some to launch groundless smear attacks on China at the excuse of food and drug safety problems," it said. Echoing the Beijing government's complaints about US media reports, the embassy said food safety concerns were not unique to China, 99.2 percent of whose food exports to the United States in 2006 met quality standards. Problematic US imports from China -- including toxic ingredients mixed into pet food and recalls of toy trains and toothpaste -- were isolated cases and "hardly avoidable" amid huge and rapidly growing bilateral trade, the statement said. "It is unfair and irresponsible for the US media to single China out, play up China's food safety problems and mislead the US consumers," it added. Appealing for strengthened cooperation between Chinese and US food inspection authorities, the statement urged Americans to "respect science and treat China's food and drug exports fairly."

Chinese residents along the Huaihe River have been urged to gear up for their second tough combat against floods in a week as the receding flood water on some branches started rising again on Saturday after torrential rains.The upper-reach Nanwan Water Dam and Shishankou Reservoir have got an average rainfall of 150 mm and 315 mm respectively on Friday, resulting a twist in the ongoing combat against the worst flooding on the Huaihe River since 1954. ¡¡ Chinese Premier Wen Jiabao talks to a child during his visit to the flood-hit Funan County in East China's Anhui Province, July 13, 2007. Continuous heavy rainfall has been battering a large part of eastern and southern China, with some parts witnessing the worst floods in decades. [newsphoto]The water level on the crucial Wangjiaba Hydrological Station may soon surge above the danger line as more rains have been forecast in the next few days, said Cheng Dianlong, deputy director of the Office of the Flood Control and Drought Relief Headquarters. Thirteen sluices at Wangjiaba station were opened Tuesday to divert flood water into the Mengwa Buffer Zone home to 150,000 people to provide relief to more than 2 million flood-hit residents in Henan Province. ¡¡ Nearly half a million people have been evacuated from the projected path of floodwater from the Huaihe River by Friday. Cheng said that the Henan hydrological departments on the upper reaches have made good use of reservoirs and water dams to alleviate pressure downstream Saturday. The flux into the Nanwan Reservoir registered at 2,760 cubic meters per second, however that out of the reservoir was¡¡reduced to 200 cubic meters per second. "The Huaihe riverbanks have been lashed by swelling water for several days. Putting up good defense will become increasingly difficult as more torrential rains are to come," he said. The headquarters issued an emergency notice Saturday to all local governments along the Huaihe River, requiring them to surmount fatigue, remain high alert and carry forward the spirit fostered in battling the 1998 Yangtze River flooding which killed more than 3,000 people and inflicted about 100 billion yuan (about 13 billion U.S. dollars) in economic losses. The notice urged them to take all adverse situations into consideration to reinforce preventive measures, continue to put the human first and safeguard the lives and assets of the people by arranging for relocation in advance. Along the Yangtze River, Guizhou, Hunan and Hubei provinces and Chongqing Municipality have been stricken by floodwater as heavy rainfall had lifted up the water levels of some branches. The Pipazui and Zhengjiahe Hydrological Stations on the tributary Fuhe River have both registered their highest water levels in history. Landslides triggered by mountain torrents killed six and caused three missing in Zhijin County of Guizhou Province, affected more than 673,000 people in Chongqing and inflicted the municipality 182 million yuan in direct economic losses. Some 1,630 people in Jingshan County of Hubei were evacuated in emergency as the water collected in downtown areas were 0.5 to 1.5 meter deep. By Friday, a total of 403 Chinese had been killed with 105 missing and 3.17 million people have been relocated as the rainy season coupled with ferocious flood waters continues to batter central and southern China.

Authorities were unable to accurately predict the recent weather conditions due to lack of equipment and an adequate forecast model, the national meteorological agency has said."We underestimated the duration and severity of the weather and failed to pre-evaluate its impact on transport and the power sector," China Meteorological Administration (CMA) spokeswoman Jiao Meiyan said.The CMA had forecast all five rain and snowstorms between Jan 10 and Feb 5 two to five days in advance. But it failed to alert the public to the extreme danger of the storms."One reason why the weather department could not make precise forecasts is because many of the places most affected were located in mountainous areas where meteorological monitors are in short supply," Duan Yihong, deputy director of the National Meteorological Center, said."Another major problem is that China's numerical weather forecasts still fall far behind world standards."Numerical weather forecasts, based on calculations by high-performance computers, are a core part of modern weather bulletins. China began to develop its own numerical forecast model less than a decade ago.There is a 10-year gap between the Chinese model and advanced foreign models, Duan said.The extreme weather also made it a huge challenge for Chinese meteorologists."It was increasingly difficult to forecast as low-probability extreme weather is occurring more frequently," Qiao Lin, chief weather forecaster of the Central Meteorological Station, said.To enhance the country's defense against extreme weather, China will begin to establish a monitoring and warning system, Jiao said.

CHENGDU - About 3.8 trillion cubic meters of natural gas deposits have been discovered in southwest China's Sichuan Basin, with verified exploitable reserves topping 600 billion cubic meters. The reserves were discovered in Dazhou, a gas-rich city in Sichuan Province. By 2010, the newly found deposits will raise the city's gas output to 24 billion cubic meters and sulphur to more than 4.3 million tons, according to a Dazhou official at the on-going Western China International Economy-Trade Fair on Saturday. China National Petroleum Corporation (CNPC), the country's biggest oil and gas producer, and Sinopec Corporation, China's largest refiner, plan to build five purification plants in Dazhou and are expected to purify a total of 74 million cubic meters of natural gas a day by 2010. Dazhou City, located in eastern Sichuan, covers an area of 16,600 square kilometers with a population of 6.46 million.

BEIJING, March 21 (Xinhua)-- Personal computer giant Dell Inc. said Thursday that it will raise parts purchases from China by 27.8 percent this year, increasing its presence in the booming market.     Dell is to buy 23 billion U.S. dollars worth of computer components and other equipment from Chinese suppliers this year, compared with 18 billion U.S. dollars in 2007, said Michael Dell, chief executive officer of the PC giant, at a press conference.     However, Dell's Beijing representative office denied reports that the company was planning to buy 29 billion U.S. dollars of computer parts from China in 2009.     To secure a bigger share of the Chinese market, Dell broke with its Internet sales model and sealed a deal in September to sell PCs through the country's top electronics retailer, GOME Electrical Appliances.     Dell saw its PC shipments in China up 54 percent year-on-year in 2007.     The company plans to expand its retail outlets from 45 cities in 2007 to 1,200 by the end of the year.     China, where Dell ranks third in terms of market share, is one of the company's fastest growing markets, said Michael Dell.     Dell has two factories in Xiamen, a coastal city in southeastern Fujian Province, a design center in Shanghai and a customer contact center in Dalian, a northeast coastal city, with more than 6,000 employees in China.     Meanwhile, Dell estimates it will contribute more than 50 billion U.S. dollars to China's gross domestic product (GDP) this year, and provide about 2 million jobs.     Dell also said it would donate 1.7 million yuan (239,436 U.S. dollars) to build six education centers in China to teach computer skills to migrant workers' children.