题目

Skydiving isn’t an activity for the faint of heart, but when you do it at 101 years old, you’re pretty much a superhuman. On May 13, Verdun Hayes became the ______person in the world to complete a 15,000-foot tandern jump (双人伞), ______ the Guinness World Records he once set up.Verdun Hayes wasn’t ______. He finished the jump with eight family members and two close ______ at Dunkeswell Airport in England. As they_____to make the jump, the entire family looked nervous, but______as well. Hayes’ grandson–in–law Ian Honnor, the organizer of the family’s jump, told TODAY, “He w 在△ABC中，a＝，b＝，B＝45°.求角A、C和边c.