中央电视台“幸运 52”栏目中的“百宝箱”互动环节，是一种竞猜游戏，游戏规则如下：在20个商标牌中，有5个商标牌的背面注明一定的奖金额，其余商标牌的背面是一张哭脸，若翻到哭脸，就不得奖，参与这个游戏的观众有三次翻牌机会（翻过的牌不能再翻）．某观众前两次翻牌均获得若干奖金，那么他第三次翻牌获奖的概率是多少？

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    The value-packed, all-inclusive sight-seeing package that combines the best of Sydney's harbor, city, bay and beach highlights.

    A SydneyPass gives you unlimited and flexible travel on the Explorer Buses: the ‘red' Sydney Explorer shows you around our exciting city sights while the ‘blue' Bondi Explorer visits Sydney Harbour bays and famous beaches. Take to the water on one of three magnificent daily harbor cruises (游船). You can also travel free on regular Sydney Buses, Sydney Ferries or CityRail services (limited area), so you can go to every corner of this beautiful city.

    Imagine browsing at Darling Harbour, tasting the famous seafood at Watsons Bay or enjoying the city lights on an evening ferry cruise. The possibilities and plans are endless with a SydneyPass. Wherever you decide to go, remember that bookings are not required on any of our services so tickets are treated on a first in, first seated basis.

    SydneyPasses are available for 3, 5 or 7 days for use over a 7-calendar-day period. With a 3 or 5-day pass you choose on which days out of the 7 you want to use it. All SydneyPasses include a free Airport Express inward trip before starting your 3, 5 or 7 days, and the return trip is valid  for 2 months from the first day your ticket was used.

    SydneyPass Fares

*A child is defined as anyone from the ages of 4 years to under 16 years. Children under 4 years travel free.

**A family is defined as 2 adults and any number of children from 4 to under 16 years of age from the same family.