Whether the stock market has the properties of mean reversion or not is still a very controversial issue.
证券市场是否具有均值回归特性仍是个十分有争议的问题。
The buyers legal status in conditional sales, especially the buyers contingent right (das Anwartschaftsrecht) is a very controversial legal issue.
所有权保留买卖中买受人的法律地位，特别是买受人的期待权，是学说史一个颇具争议的难题。
The buyers legal status in conditional sales, especially the buyers contingent right (das Anwartschaftsrecht) is a very controversial legal issue.
所有权保留买卖中买受人的法律地位，特别是买受人的期待权，是学说史一个颇具争议的难题。
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