【题目】利用独立性检验来考虑两个分类变量X和Y是否有关系时，通过查阅临界值表来确定推断“X与Y有关系”的可信度，如果k＞5.024，那么就推断“X和Y有关系”，这种推断犯错误的概率不超过（ ）
A．0.25 B．0.75
C．0.025 D．0.975
导学全程练创优训练系列答案科目：高中地理 来源： 题型：
【题目】已知集合A={x|-3≤x＜3},B={x|2＜x≤5}，则A∪B＝（ ）
A．{x|2＜x＜3} B．{x|-3≤x≤5}
C．{x|-3＜x＜5} D．{x|-3＜x≤5}
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科目：高中地理 来源： 题型：
【题目】 Time is very important in our lives. It our everyday moments. However, time never had any importance in my life until I a watch from my father, which organized my life and made my more .
It’s round in the center with two silver bands that around my wrist and all of it is made of silver.This tells me the importance of time in my life.
I received this on a gray–sky day. I had to go to the airport at 9:00 am to up my Uncle Ali and take him to my father’s house.
, I was late because I was out with my friends. Later on that day, around 11:00 am, I my uncle, but I was very for him. He had the airport and taken a taxi to my father’s house.
I got to my father’s house at 2:00 pm that day and felt of myself at that moment. After I said hi to my father and tired uncle, my father asked me to sit next to him and handed me this watch as a gift from him. Then he said, “Peter, did you have with your friends today?” I answered, “Yes, Father, and I am sorry for not picking up my Uncle Ali.” He said, “What you was not very nice and you should be sorry for your .” I was ashamed and said, “Father, I’ll never do it again . I promise.” He said, “I hope today you learned something important, and this watch will be a for you.” He told me to take this watch and use it as an organizer of my .
I learned a very important lesson from my father: to time and never to be late to get someone. This watch is to me, not because of its price, but because of the lesson that I learned from it.
【1】A．appreciate B．organizes C．orders D．supplies
【2】A．important B．similarity C．necessity D．interest
【3】A．confident B．independent C．efficient D．responsible
【4】A．object B．belonging C．matter D．stranger
【5】A．card B．letter C．gift D．thing
【6】A．call B．pick C．put D．bring
【7】A．Otherwise B．Fortunately C．However D．Hopefully
【8】A．going B．hanging C．standing D．leaving
【9】A．forgot B．remembered C．saw D．visited
【10】A．anxious B．nervous C．early D．late
【11】A．reached B．recognized C．left D．found
【12】A．ashamed B．frightened C．disappointed D．shy
【13】A．kind B．happy C．angry D．doubtful
【14】A．pleasure B．fun C．appointment D．quarrels
【15】A．said B．did C．thought D．forgot
【16】A．idea B．words C．actions D．promises
【17】A．wonder B．hope C．requirement D．reminder
【18】A．life B．day C．way D．thought
【19】A．waste B．respect C．neglect D．enjoy
【20】A．useful B．necessary C.different D．important
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科目：高中地理 来源： 题型：
【题目】有两个分类变量X与Y的一组数据，由其列联表计算得k≈4.523，则认为“X与Y有关系”犯错误的概率为（ ）
A．95% B．90% C．5% D．10%
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【题目】下列命题中，真命题是（ ）
A．函数的最大值一定不是该函数的极大值
B．函数的极大值可以小于该函数的极小值
C．函数在某一闭区间上的极小值就是函数的最小值
D．函数在开区间内不存在最大值和最小值
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【题目】已知a，b表示直线，α，β，γ表示平面，则下列推理正确的是（ ）
A．α∩β＝a，bαa∥b
B．α∩β＝a，a∥bb∥α且b∥β
C．a∥β，b∥β，aα，bαα∥β
D．α∥β，α∩γ＝a，β∩γ＝ba∥b
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【题目】对“梦想”的追求因人而异，请仿照示例，选择熟悉的作品和人物，另写两个句子，表达人物对“梦想”的追求。要求：(1)符合人物的思想性格；(2)句式相近，每句话补写的字数不超过30字。
示例：《我有一个梦想》中的马丁·路德·金说：我梦想有一天，幽谷上升，高山下降，坎坷曲折之路成坦途。
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