Stocks gain on preliminary U.S.-China trade deal, oil rises

NEW YORK (Reuters) - Global stock markets rallied on Monday, lifting Wall Street's three major indexes and a global gauge of equity performance to record highs after a preliminary U.S.-China trade deal pointed to stronger global growth, helping to drive up oil prices.A pan-European index also hit a record high and the landslide election victory last week by British Prime Minister Boris Johnson pushed the benchmark FTSE 100 to its biggest single-day gain in more than three years.Chinese stocks..