CNN asked experts to explain biggest challenges facing China . The country is the world's largest importer of oil and gas, but it has been struggling with a slowing economy for years. Delegates are meeting for National People 's Congress in Beijing . Xi Jinping to formally become Chinese president at end of congress .
CNN asked experts to explain biggest challenges facing China . Experts : Economic disparity , gender imbalance , water and food security are big issues . Delegates are meeting for National People 's Congress in Beijing . Xi Jinping to formally become Chinese president at end of congress .