题目

         Social rules or laws on marriage vary widely between countries．Some countries, still do not have a legal minimum age for marriage, which makes child macriages are very common, there．          In the Western Christian countries, a 13 -year -old is still considered a child．Even getting married in one* s late teens is not usually encouraged because married life is likely to interfere with a young woman' s education and consequently restrict opportunities in later life．And there are also physical dangers in giving birth so young．            In Muslim c 脱式计算．23-（56-75%）÷37.5% 25.3-1.2÷20%-0.72 38÷〔（75%+15）÷50%〕 4.5÷（1+25%）×75% 25%÷（23+50%）×80% 〔815-（80%-30%）〕×1514．