How many Airlines have a total distance of 705 (km)?
CREATE TABLE "by_aircraft_movements" (
  "rank" text,
  "route" text,
  "avg_daily_flts" real,
  "num_of_airlines" real,
  "distance_km" real,
  "market_share_leader" text
);
SELECT COUNT("num_of_airlines") FROM "by_aircraft_movements" WHERE "distance_km"=705;