对水文现象进行地理综合分析时常用（　　）。 简述教育行动研究的特点。 Our eating habits are very important for good health and a strong body.There are times when?most of us would rather eat sweets and ice-cream than meat and rice.Sweets and ice-cream are not?bad if we eat them at the end of a meal.If we eat them before a meal,they may take away our appe-tite（食欲）~It is important for us to eat our meals at the same time each day.When we feel hungry,it is a sign that our body needs food.When we feel angry or excited,we may not want to eat.A long time ago,in England,some judges used to decide whether a man was telling the truth by giving him some dry bread.If the man could not eat the bread,it showed that he was telling lies.Although this seems very strange and rather foolish,it is indeed a very good way of finding out the fact.A man who is worrying about something has difficulty in eating anything dry.Because he is worrying,he loses his appetite and does not want to eat.We must have good eating habits because__________. 反映一个国家经济是否具有活力的基本指标是( )。 下列不是“三个代表”内容的是（　　） 提示：星期五晚上有音乐会，Chris得到两张票，打电话给Linda，问她是否有空一同前往，并约她音乐会后一起吃饭。Linda听了非常高兴，两人相约六点四十五分在入口处见面。Linda:Hello!This is Linda speaking.Chris:Hello,Linda,this is Chris.51?thisFriday evening?Linda:Yes,why?Chris:There′sa good concert,and I′ve got two tickets.I wonder?52Linda:That′s great!53?Chris:7o′clock.But how about?54 at 6:45?Linda:OK.I think I can make it.Chris:After the concert,55,shall we?Linda:Wonderful!Why don′t we go to a Chinese restaurant?Chris:Whynot?OK,see you Friday.Linda:See you then.Bye！第51题答案是 确定我国经济体制改革目标的核心问题是，正确认识和处理（ ） 关于卖出看涨期权，下列说法正确的有（　　）。I当标的物市场价格小于执行价格时，卖方风险随着标的物价格下跌而增加Ⅱ标的物价格窄幅整理对其有利Ⅲ当标的物市场价格大于执行价格时，卖方风险随着标的物价格上涨而增加Ⅳ标的物价格大幅震荡对其有利 The ordinary family in colonial North America was primarily concerned with sheer physical survival and beyond that, is own economic prosperity. Thus, children were valued in terms of their productivity, and they assumed the role of producer quite early. Until they fulfilled this role, their position in the structure of the family was one of subordination（从属）, and their psychological needs and capacities received little consideration. 　　As the society became more complex, the status of children in the family and in the society became more important. In the complex, technological society that the United States has become, each member must fulfill a number of personal and occupational roles and be in constant contact with a great many other members. Consequently, viewing children as potentially acceptable members of society means that they are regarded more as people in their own right than as utilitarian organisms. This acceptance of children as equal participants in the contemporary family is reflected in the variety of statutes protecting the rights of children and in the social public welfare programs devoted exclusively to their well-being.　　This new way of children and the increasing contact between the members of society has also resulted in a great interest in child-rearing techniques. People today spend a considerable portion of their time on the proper way to bring up children. It is now possible to influence the details of the socialization of another person"s child by spreading the principle of current and fashionable theories and methods of child-rearing.Children in colonial North America were mainly valued for their ____.（　　） “一国两制”构想的提出，最初是为了解决（ ）。