问题
选择题
现安排甲、乙、丙、丁、戊5名同学参加上海世博会志愿者服务活动，每人从事翻译、导游、礼仪、司机四项工作之一，每项工作至少有一人参加，甲、乙不会开车但能从事其他三项工作，丙、丁、戊都能胜任四项工作，则不同安排方案的种数是[ ]
A．54
B．90
C．126
D．152
答案
答案：C
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现安排甲、乙、丙、丁、戊5名同学参加上海世博会志愿者服务活动，每人从事翻译、导游、礼仪、司机四项工作之一，每项工作至少有一人参加，甲、乙不会开车但能从事其他三项工作，丙、丁、戊都能胜任四项工作，则不同安排方案的种数是[ ]
A．54
B．90
C．126
D．152
答案：C
John and Tim are very popular in Jason Middle School. They are not only good at studying, but also good at playing sports. Kay and Sue are talking about them. Kay: Hello. Sue! Sue: Hi. Kay! Kay: 小题1:____________ Sue: No. No one has told me about the match. 小题2:_____________ Kay: Although the opposing(对抗的) team was strong, our school won at last. Sue: 小题3: _____________ They are really good basketball players. Kay: Yes. They can play basketball better than others because they practice much more. I always see them practicing on the playground in the gym and sometimes running around the school track(跑道). Sue: 小题4:_____________ Kay: Yes. And either John or Tim will be chosen as the Best School Athlete of the Year. Sue: Wow! 小题5:_____________ Kay: I think so.
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