题目

阅读理解下面是Fred 一周的活动安排。MondayGo to see JoyChildren's Hospital 3:00 — 5:00 p.m.TuesdayDancing class 8:30 — 10:30 a.m.WednesdayPart-time job (兼职工作) 12:00 — 6:00 p.m.ThursdaySee Dr Brown 10:30 — 11:30 a.m. Part-time job12:00 — 5:00 p.m.FridayGo to the station to meet Ann 9:00 a.m.SaturdayMeet Tom to study for a test 2:00 — 4:00 p.m.SundayBirthday party for Kay 5:00 — 8:00 p.m. （1） Where does Fred meet Ann? A . At Brown's house. B . In the hospital. C . At the station. D . At Kay's house. （2） How many hours a week does 22、观察单项式：2a，-4a2，8a3，-16a4…根据规律，第n个式子是（-1）n-12nan．