A. America is still not an affluent county B. America has not done enough for those underprivileged C. some people do not uphold the stated principle D. America has a wrong idea of welfare 参考答案:D 答案解析:本题为细节理解题。据第1段第2、3句可确定。
第24题: [单项选择]以下哪一项不属于垂直搜索引擎.() A. 就业搜索引擎深度(deepdo.com) B. 百度搜索引擎(baidu.com) C. 股票搜索引擎MACD(macd.cn) D. 学术论文搜索引擎(scholar.googlE.com/) 参考答案:B