题目

On 8th March this year, events marking International Women’s Day (IWD) were held in many countries around the world. In most countries the events have a political tone: they tend to celebrate the advances women have made towards economic, social and political equality with men, and to press for change in those areas of life where there is still progress to be made. In other countries, meanwhile, 8th March is traditionally more about expressing an appreciation of women: it  is a day on which men give presents to their wives, girlfriends and mothers, and it therefore has some similarit2012年3月12日，国家财政部公布全国公共财政收入情况，1-2月累计，全国财政收入20918.28亿元，这个数据用科学记数法表示并保留两个有效数字为    亿元．