Friday,Tehran delayed its response to a proposal made by the US, France and Russia to further enrich Tehran's existing stockpile of low-grade uranium.

VOA: standard.2009.10.24

They would say there is a low correlation between SAT scores and grade point averages in college, or maybe it's a high correlation.

媒体会说,SAT成绩,和大学里的平均学分相关性很低,或相关性很高

耶鲁公开课 - 金融市场课程节选

The IAEA draft deal calls for Iran to ship its stockpile of low-grade enriched uranium to Russia to be transformed into more highly enriched uranium for use in Tehran's medical research reactor.

VOA: standard.2009.10.28

"The chairman concurs Iran has enough low-enriched to produce a nuclear weapon, but it's important to note it's low-grade, and to enrich it would take time, " Kirby said.

CNN: U.S.: Iran has material for nuclear bomb but still 'not close'

Today's dividend yield is uncompetitive with municipal paper and low-grade corporates and is subject to cutbacks like GE's.

FORBES: Risks Skewered To The Downside

The third came in 1998 when the long-term capital management debacle and Russia's default sent low-grade bond prices plummeting, crushing high-debt REITs like Criimi Mae and Laser Mortgage Management with margin calls.

FORBES: House of Cards