下列随机变量中，不是离散型随机变量的是（）。
A、从10只编号的球（0号到9号）中任取一只，被取出的球的号码ξ
B、抛掷两个骰子，所得的最大点数ξ
C、［0，10］区间内任一实数与它四舍五人取整后的整数的差值ξ
D、一电信局在未来某日内接到电话呼叫次数ξ
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请阅读 Passage 1,完成第 21~25小题。Passage 1Every year, the Nobel Prize is given to outstanding work in six fields: physics, chemistry, medicine, literature, economics, and work in peace.These prizes are named after Alfred Nobel, who asked for the Nobel Foundation to be made in his will.He was an inventor and businessman.Nobel was born in Stockholm, Sweden in 1883.His father, Immanuel Nobel has periods of success building bridges and periods of not making any money.Immanuel sent Alfred to study chemistry in Paris.Alfred met Ascanio Sobrero, who found the liquid nitroglycerine, a liquid that explodes very easily.Alfred thought about making use of nitroglycerine in the construction of bridges and tunnels.An accident happened during the experiment with the liquid, causing an explosion, which killed and injured several people, including his brother.He continued looking for ways to make this liquid not explode so easily.Nobel was successful in finding a safe way to store the liquid and in 1864 began producing huge amounts of it.He found that mixing it with kind of sand would turn the liquid into a paste.He then wanted to shape the paste into rods that would make it easy to blow up rock when building a tunnel.In 1867, he patented the material as dynamite.This patent greatly reduced the costs of blasting rock and drilling tunnels.As a businessman, Nobel set up laboratories that made dynamite in 90 locations in more than 20 countries.Although dynamite was useful in construction, many people used it as a weapon in war. At age 43, the wealthy and lonely businessman put an ad in the newspaper for a secretary though he was really looking for a wife.Bertha Kinsky worked as his secretary for a short time, but married another man and became Bertha von Suttner.Bertha and Alfred remained friends and wrote letters many years later.She most likely influenced him to strive for peace.She published a novel “Lay Down Your Arms!” in 1889 and became a leading figure in the peace movement.For these reasons, she was awarded the Nobel Peace Prize in 1905.According to the passage, which of the following statements is true?
A、The construction of bridges and tunnels became much more expensive.
B、The original objective of dynamite was to help the Russian navy.
C、Many people used nitroglycerine as a weapon in war.
D、Alfred Nobel gave away prizes to specialists in six categories.
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体育老师对九年级（1）班学生“你最喜欢的体育项目是什么？（只写一项）”的问题进行了调查，把所得数据绘制成频数分布直方图（如图）。由图可知，最喜欢篮球的频率是（）。
A、0.16
B、0.24
C、0.3
D、0.4
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关于判断框和分支结构，叙述正确的是（）。
A、判断框有一个出口、分支结构也有一个出口
B、判断框有两个出口、分支结构也有两个出口
C、判断框有一个出口、分支结构有两个出口
D、判断框有两个出口、分支结构有一个出口
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在十二生肖中以下地支所对应的属相是辰____、酉____、午____、申____。
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Passage 2The subject of ballads, books and films, Robin Hood has proven to be one of popular culture's most enduring folk heroes. Over the course of 700 years, the outlaw from Nottinghamshire who robs the rich to give to the poor has emerged as one of the most enduring folk heroes in popular culture--and one of the most versatile. But how has the legend of Sherwood Forest's merry outlaws evolved over time? Did a real Robin Hood inspire these classic tales?Beginning in the 15th century and perhaps even earlier, Christian revelers in certain parts of England celebrated May Day with plays and games involving a Robin Hood figure with near-religious significance. In the 19th century, writer-illustrators like Howard Pyle adapted the traditional tales for children, popularizing them in the United States and around the world. More recently, bringing Robin to the silver screen has become a rite of passage for directors ranging from Michael Curtiz and Ridley Scott to Terry Gilliam and Mel Brooks.Throughout Robin's existence, writers, performers and filmmakers have probed their imaginations for new incarnations that resonate with their respective audiences. In 14th-century England, where agrarian discontent had begun to chip away at the feudal system, he appears as ananti-establishment rebel who murders government agents and wealthy landowners. Later variations from times of less social upheaval dispense with the gore and cast Robin as a dispossessed aristocrat with a heart of gold and a love interest, Maid Marian.Academics, meanwhile, have combed the historical record for evidence of a real Robin Hood. English legal records suggest that, as early as the 13th century, "Robehod," "Rabunhod" and other variations had become common epithets for criminals. But what had inspired these nicknames: a fictional tale, an infamous bandit or an amalgam of both? The first literary references to Robin Hood appear in a series of 14th-and 15th-century ballads about a violent yeoman who lived in Sherwood Forest with his men and frequently clashed with the Sheriff of Nottingham. Rather than a peasant, knight or fallen noble, as in later versions, the protagonist of these medieval stories is a commoner. Little John and Will Scarlet are part of this Robin's "merry" crew-meaning, at the time, an outlaw's gang-but Maid Marian, Friar Tuck and Alan-a-Dale would not enter the legend until later, possibly as part of the May Day rituals.While most contemporary scholars have failed to turn up solid clues, medieval chroniclers took for granted that a historical Robin Hood lived and breathed during the 12th or 13th century. The details of their accounts vary widely, however, placing him in conflicting regions and eras. Not until John Major's History of Greater Britain (1521), for example, is he depicted as a follower of King Richard, one of his defining characteristics in modern times.We may never know for sure whether Robin Hood ever existed outside the verses of ballads and pages of books. And even if we did, fans, young and old, would still surely flock to England's Nottinghamshire region for a tour of the legend's alleged former hangouts, from centuries-old pubs to the Major Oak in Sherwood Forest. What we do know is that the notion of a brave rebel who lives on the outskirts of society, fighting injustice and oppression with his band of companions, has universal appeal-whether he's played by Erroll Flynn, Russell Crowe or even, as on a 1979 episode of The Muppet Show, Kermit the Frog.Which of the following is closest in meaning to the underlined phrase" a rite of passage" in Paragraph 2?
A、A milestone event.
B、A top agenda.
C、A religious ceremony.
D、A privileged right.