CREATE TABLE table_46994 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT)

What was the method in round 1 of the UFC 20 event?
SELECT "Method" FROM table_46994 WHERE "Round" = '1' AND "Event" = 'ufc 20'
SELECT "Method" FROM "table_46994" WHERE "Event" = 'ufc 20' AND "Round" = '1'