When Hugo Chávez stormed to power in Venezuela in 1998 he promised to transform the lives of the poor. But now 20 years on, 90 percent of families in Venezuela say they do not have enough to eat - and the United Nations predicts that over five million people will have fled the country by the end of 2019. 　　Chávez was at the helm of the country with the largest proven oil reserves... (展開全部)