已知全集$U=\left\{x|-2\le x\le 1\right\}$，$A=\left\{x|-2<x<1\right\}$，$B=\left\{x|x^2+x-2=0\right\}$，$B=\left\{x|-2\le x<1\right\}$，则（   ）

香港回归以来，为祖国内地的发展作出了巨大贡献，祖国内地为香港繁荣提供了坚实的后盾和强有力的支撑。关于香港的叙述正确的是
①被誉为“东方明珠”  ②世界著名的自由贸易港 ③重要的国际金融中心和信息服务中心 ④博彩旅游业发达

                                                                                                                          Active New Zealand

    Adventure tours in New Zealand and South America

    Website: www.activenewzealand.com

    Phone: 1-800-661-9073

    Destinations: South Pacific, New Zealand, South America, Argentina, Chile, Peru, Ecuador, Costa Rica

    Activities: Bicycling, Mountain, Road, Cross-Country/Touring, Sea-kayaking, Hiking & Trekking(远足), Backpacking, Exploring, Day hiking, Family, Scuba-diving（带水肺潜水）, Rainforest, Wildlife, Walking

    Adventure Life

    Exceptional travel in Latin America and Antarctica

    Website: www.adventure-life.com

    Phone: 1-800-344-6118

    Destinations: Antarctica, South America, Argentina, Chile, Peru, Ecuador, Bolivia, Central America, Belize, Costa Rica, Panama

    Activities: Kayaking, Rafting, Sea-kayaking, Hiking & Trekking, Backpacking, Exploring, Day hiking, Multisport, Cultural, Archaeological（考古的）, Historical, Scuba & Snorkeling, Nature, Rainforest, Wildlife, Eco-focused, Culture-focused, Expedition Cruising

    Adventure Spirit / Travel Network

    Adventure tour operator + Travel agency

    Website: www.worldadventures.travel

    Phone:1- 800-492-0257

    Destinations: Asia, Europe, South Pacific, Antarctica, Africa, South America, North America

    Activities: Bicycling, Paddlesport, Snowsport, Hiking & Trekking, Caving, Family, Multisport, Cultural, Beach & Watersport, Scuba & Snorkeling, Nature, Photography, Safari, Geotourism, Fishing & Fishing Lodges, Sailing & Cruise, Other, Expedition Cruising, Space, Educational, Walking, Horseback/Dude Ranch（牧场）, Self-Drive, Around the World Tours