Why do almost one half of all Americans have to pay experts？
A. Because the list of taxes seems endless.
Because they would rather spend their time and energy elsewhere.
C. Because they find their knowledge about taxes is so limited that they are unable to write tax report all by themselves.
D. Because paying experts to prepare their tax report and asking for tax advice have become very popular.
A "progressive tax" is the tax______.
A. collected for social progress
B. that increases with each passing year
C. that is collected from those who earn most
D. that varies (变化) according to how much money a person earns
影响对战略配置进行修正的因素不包括()。
A. 关于资产类别的长期风险和预期收益关系
B. 投资者的风险容忍度
C. 对已实现的收益率构成的资产类别的相对价值重估
D. 资产的流动性
某少女，16岁，无意中扪及右下腹有一肿物，排便后突然右下腹剧痛，伴恶心呕吐，体温：37．2℃，检查右下腹肿物压痛明显。
最可能的诊断是
A. 盆腔炎性包块
B. 输卵管结核
C. 卵巢肿瘤蒂扭转
D. 子宫浆膜下肌瘤扭转
E. 卵巢肿瘤合并感染
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