青岛龅牙矫正方法(青岛牙齿矫正价钱) (今日更新中)

SHANGHAI, May 3 (Xinhua) -- The gas supply to about 10,000 households in Shanghai was suspended for eight hours after a gas pipeline was broken by a grab at a construction site on Thursday. No casualty has been reported, according to the municipal government. The accident happened at around 8 a.m. at the crossing of the downtown Caoyang and Shunyi streets. Workers said gas burst out after the grab broke a gas pipeline with a diameter of 300 millimeters. Though they tried to plug the crack with bricks and mud, the leak was out of control till rescuers from the municipal gas supply company arrived. The company cut the gas supply later and fire fighters sprayed water around the pipeline to dilute the gas to avoid explosion. The pipeline was repaired at around 4 p.m. and the supply had resumed by 6 p.m., according to the gas supply company.

China's quality watchdog cracked 23,000 cases of fake and low-quality food from December 2006 to May 2007, involving 200 million yuan (26 million U.S. dollars). A total of 180 food manufacturers were shut down during the six months for making substandard food or using unedible materials for food production, said Han Yi, a senior official with the General Administration of Quality Supervision, Inspection and Quarantine, at a press conference on Tuesday. The administration launched the nationwide fight against illegal food production and processing in December last year, mainly targeting food makers in the countryside and food for everyday consumption, including baby milk powder, rice, wheat powder and meat products. In 2006, China's industrial and commercial authorities ferreted out 68,000 fake food cases and withdrew 15,500 tons of substandard food from the market, according to the State Administration for Industry and Commerce. Forty-eight cases were handed over to judicial departments.

WASHINGTON: A team of researchers found there is not much difference between the sexes when it comes to talking, when you actually count the words. The researchers placed microphones on 396 college students in the United States and Mexico for periods ranging from two to 10 days, sampled their conversations and calculated how many words they used in the course of a day. The score: Women, 16,215; Men, 15,669. The difference: 546 words: "Not statistically significant," say the researchers in Friday's edition of the journal Science. "What's a 500-word difference, compared with the 45,000-word difference between the most and the least talkative persons" in the study, Matthias R. Mehl, an assistant psychology professor at the University of Arizona, who led the research, said. He said the least talkative person in the study - a male - used just over 500 words a day, while another male topped that by more than 45,000. Co-author James W. Pennebaker, chairman of the psychology department at the University of Texas, said the researchers collected the recordings as part of a larger project to understand how people are affected when they talk about emotional experiences. They were surprised when a magazine article asserted that women use an average of 20,000 words per day compared with 7,000 for men. If there had been that big a difference, he thought, they should have noticed it. "Although many people believe the stereotypes of females as talkative and males as reticent, there is no large-scale study that systematically has recorded the natural conversations of large groups of people for extended periods of time," Pennebaker said. Indeed, Mehl said, one study they found, done in workplaces, showed men talking more. Still, the idea that women use nearly three times as many words a day as men has taken on the status of an "urban legend", he said. Agencies

XI'AN -- Lawmakers in Northwest China's Shaanxi Province enacted a law on Saturday that is intended to improve protection of the Qinling Mountains, a habitat of endangered giant pandas.The law, which will take effect on March 1, is aimed at preserving biodiversity, preventing soil erosion (which averages 84 million tons a year) and promoting harmony between man and nature in the mountain range, which is a divide between China's north and south.It requires all future development projects in the Qinling Mountains to be assessed for their possible impact on the ecology and bans real estate projects and polluting industries in nature reserves, where the ecology is more vulnerable.The law also bans mining and resource exploration in nature reserves and forest parks.Local governments must ensure immediate demolition of existing projects that are potentially harmful to the ecology, it says.The Qinling range, which largely spans Shaanxi Province, covers more than 50,000 square kilometers.The range is home to approximately 300 Qinling pandas, a sub-species of giant pandas on the verge of extinction, and many other rare animals under state protection, such as golden monkeys, the red ibis and antelopes.

SHANGHAI -- China will launch its first Mars probe in October 2009 as part of a joint mission with Russia, said sources with the Shanghai Space Administration, the main developer of the probe, on Monday. Researchers are "pressing ahead" with the project for a synchronized launching with a Russian probe, said Chen Changya, a researcher with the Shanghai Institute of Satellite Engineering, at a space technology exhibition. He said the home-developed Chinese probe is scheduled for completion by June 2009. The probe, 75 centimeters long, 75 centimeters wide, 60 centimeters high and weighing 110 kilograms, is designed to be able to serve a two-year mission, according to Chen. Its model is on display at the exhibition. The Chinese probe, with Russia's Phobos-Grunt, will be launched by a Russian carrier rocket, Chen said. They are expected to land on Mars in 2010 after 10 month's flight.

来源：资阳报