该调查错误率是加上或减去2.6%，对次级群组错误率幅度更大。
The survey has a total margin of error of plus or minus 2.6 percentage points, larger for subgroups.
同时，SEC宣称将大幅增加对4个热点领域的调查：内部交易，对冲基金，次级借贷、倒签期权日期和市政金融。
The SEC, meanwhile, reports a big increase in investigations in four areas of interest for enforcers: insider trading and hedge funds; subprime lending; options backdating; and municipal finance.
FBI在对超过580家公司进行诈骗调查，其中至少四十家有次级抵押贷款业务。
The FBI has more than 580 corporate fraud investigations underway, of which at least 40 concern sub-prime mortgage lending.
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