题目

Using your CardLibrary Cards are free to all people in California. They allow you to borrow books, magazines, CDs and DVDs from our library. They also allow you to use the computers at the library.Click here to apply for (申请) a Card.You must show your photo ID in person at the library.You must come to the library to receive a Card or change an expired (到期的) Card yourself. Library Cards expire after four years.You can always update (更新) your address, phone number and email online.Tell us immediately if your Card is lost or stolen.Cards for kids and teensThe signature of a parent i甲、乙两队进行排球决赛，现在的情形是甲队只要再赢一局就获冠军，乙队需要再赢两局才能得冠军，若两队每局获胜的概率相同，则甲队获得冠军的概率为(　　)A． B． C． D．