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Harper paid his first visit to China in December 2009, which took him to Beijing, Shanghai and Hong Kong and led to a return visit by the Chinese President Hu Jintao in June 2010.

Sun said some provinces have already failed their annual emission-reduction targets, thus making the country's environmental protection even more difficult in the future.

Designed and built solely by China's aviation industry, the C919 jumbo jet, with some 156-190 seats on board, is expected to take flight in 2014 and with its aircraft deliveries scheduled as of 2016.

The new draft highlights a concise definition on the "excessive packaging of products" and a list of detailed conditions under which compulsory clean production checks should be imposed on enterprises, said Sun Anmin, vice chairman of the NPC Law Committee.

The study found that the more omega-3 fatty acids a person took in, the lower their blood beta-amyloid levels. Consuming one gram of omega-3 per day (equal to approximately half a fillet of salmon per week) more than the average omega-3 consumed by people in the study is associated with 20 to 30 percent lower blood beta-amyloid levels.