HONG KONG/TOKYO (Reuters) – Asian stocks held near four-year lows and crude oil prices approached a 20 percent drop in less than two weeks as investors worried over the extent of China’s economic slowdown and its impact on emerging markets. MSCI’s broadest index of Asia-Pacific shares outside Japan edged 0.4 percent higher but still stood near a four-year low touched on Monday, and was still down more than 8 percent since the start of 2016.