US STOCKS-Wall St ends higher after Fed leaves investors unruffled
* Fed says economy and job market continue to strengthen
* Facebook and Whole Foods fall after the bell following reports
* Twitter dives after poor quarterly report
* General Dynamics' report sparks rally in aerospace stocks
* Indexes up: Dow 0.69 pct, S&P 0.73 pct, Nasdaq 0.44 pct (Updates with close, comment, details on quarterly results)
By Noel Randewich
July 29 (Reuters) - U.S. stocks finished stronger on Wednesday after the U.S. Federal Reserve said the economy and job market continued to strengthen and left its key interest rate unchanged.
The central bank's comments on the economy and inflation after its two-day pow-wow appeared to do little to drastically change wide expectations that the first rate hike will come in September or possibly December.
No move on rates was expected this week. U.S. interest rates have remained near zero for almost a decade and the Fed has said it will raise rates once it sees a sustained recovery in the economy. Continuación...