But they may look back on 2011 and see three events that undermine that story: the downgrade of America's credit rating; the last flight of the space shuttle; and Mr Jobs's death.
The Instrument Rating gives the ability to control the aircraft without reference to the ground or horizon, using flight and navigation instruments.
仪表等级赋予飞行员控制飞机的能力,而不用参考地面或地平线,只使用飞行和导航仪表。
3
The move came hours after ratings agency Standard & Poor's cut Russia's credit rating to one notch above junk, citing a flight of capital from the country.