阅读下面的文字，回答问题。

①子贡问政。子曰：“足食，足兵，民信之矣。”子贡曰：“必不得已而去，于斯三者何先？”曰：“去兵。”子贡曰：“必不得已而去，于斯二者何先？”曰：“去食。自古皆有死，民无信不立。”

②季康子问政于孔子曰：“如杀无道，以就有道，何如？”孔子对曰：“子为政，焉用杀？子欲善而民善矣。君子之德风，小人之德草，草上之风，必偃。”

③齐景公问政于孔子。孔子对曰：“君君，臣臣，父父，子子。”公曰：“善哉！信如君不君，臣不臣，父不父，子不子，虽有粟，吾得而食诸？”同是“问政”，孔子的回答却不相同，从这些不同回答中体现出孔子怎样的治国思想？

计算：（1$\frac{3}{4}-\frac{7}{8}-\frac{7}{12}$）÷（﹣$\frac{7}{8}$）

根据短文理解，选择正确答案。

    For kids and many adults,a San Diego vacation means theme parks and other attractions.Before heading to a park,call or check its website for updated hours of operation; many parks have seasonal or holiday hours.Ticket prices listed here are for general admission（入场费）,single-day use only.

Sea World San Diego

    A 6-minute ride called Journey to Atlantis,which is to open in late May,tells the legend of the island nation. After the ride of Greek fishing boats,folks can visit a new exhibit of dolphins,which have not been on display at the park since 1998.

    DETAILS: General admission is $46.95 for adults,$37.95 for children aged 3-9,free for children 2 and younger. 1-800-380-3203 or www.seaworld.com.

San Diego Zoo

    There's not much in the way of new attractions.The zoo has a new panda cub（幼兽）,Mei Sheng.Nighttime Zoo, a program popular with families,starts June 26.

    DETAILS: General admission is $21 for adults,$14 for children aged 3-11,free for children 2 and younger. 1-619-234-3153 or www.Sandiegozoo.com

Maritime（海的）Museum of San Diego

    The HMS Surprise,the 18th-century British warship featured in the film Master and Commander,is on exhibit through Nov.30.

    DETAILS: The ship is available for tours from 9 am to 8 pm daily.Admission is $8 for adults,$6 for seniors and children aged 13-17,$5 for kids aged 6-12,and free for kids 5 and younger.1-619-234-9153 or www.sdmaritime.org.

Old Town Trolley Tours

    Visiting relatives or friends in San Diego? They can get a hometown pass and ride for free with your paid admission.

    DETAILS: The main ticket booth（售票亭）is in Old Town at 4010 Twiggs St.Hours are from 9 am to 5 pm, daily $25.www.historictours.com.

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