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【单选题】
现代导游服务始于()A.
第二次世界大战前
B.
20世纪60年代
C.
20世纪80年代
D.
21世纪初
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举一反三
【简答题】自主学习任务单
【简答题】Passage 1 Car servicing is something that every car owner has to experience at least some time of the year. The best method to service your car is to go to your car service station and have the servic...
【单选题】Task 13 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> Car servicing is something that every car owner has to experience at least sometime of the year. The best method to serv...
A.
To service your car by yourself.
B.
To have your car serviced at the service station.
C.
To turn to other car owners for help.
D.
To send your car back to the car maker.
【简答题】自主学习任务单
【单选题】每次试验的成功率为p(0A.(1－p)2B.1－p2C.3(1－p)D.1－p3
A.
每次试验的成功率为p(0＜ｐ＜１） A.(1-p) 2
B.
1-p 2
C.
3(1-p)
D.
1-p 3
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