The first two singles \"U Remind Me\" and \"U Got It Bad\" each topped the U.S. Hot 100 singles chart for four and six weeks respectively in the summer and fall.

两支单曲“U Remind Me”以及“U Got It Bad”各自都在夏季以及秋季的Hot 100 singles 上连续四周及六周位居榜首。

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The disaster comes as Obama administration attempts to chart a course toward U.S.energy independence and less reliance on fossil fuels.

VOA: standard.2010.05.02

What Ralston doesn't point out is that this ominous global collection of nearly 6, 000 advanced warplanes includes those of Britain, France, Canada--everyone except the U.S. Nor does he mention that many of the warplanes on his chart rolled off U.S. assembly lines.

CNN: The Sky's The Limit

The following chart compares U.S. solar costs to German costs (studies were updated to reflect current solar panel prices).

FORBES: Cut The Price Of Solar In Half By Cutting Red Tape

The nearby chart shows U.S. federal debt held by the public as a share of GDP since the beginning of World War II.

WSJ: Review & Outlook: Debt and Growth