听力题 Airlines are being hit with huge increases to insure their planes after the terrorist attacks in the United States. Goshawk Insurance Holdings which insures aircraft around the world, said rates have soared as much as tenfold since the September 11th terror attacks. Airlines around the world have cut services and dismissed staff as their business has plunged in the week of the crisis. They are also struggling with increased security costs.After the terrorist attacks in the United States, insurance rates soared as much as_______.