问题 填空题

设随机变量X的分布函数为

答案

参考答案:1,

解析:[考点提示] 随机变量的分布函数
[解题分析] 由于任何随机变量X的分布函数F(x)是右连续函数,因此对任何x,有F(x)=F(x+0).对于[*],有
[*]
因此A=1,其中[*],又
[*]
因F(x)在[*]处连续,因此[*]所以
[*]

句型转换

句型转换

1. He asked,“Why are you late today,Jimmy?”  

                                                                

2. Lucy said,"I'm going to the beach for vacation. "  

                                                                

3. Mother told me,"I'm not mad at you anymore. "  

                                                                

4. Xiao Li asked me,"Can I copy your homework?"  

                                                                

5. Tom asked his father,"Why does the sun rise(升起) in the east and go down in the west?

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6. Alan said he was not lucky enough then.  

                                                                

7. Scott said his sister wasn't a college student.  

                                                                

8. Dennis said Mary wouldn't go because she was ill.  

                                                                

9. He told me not to do it again.  

                                                                

10. She said her parents weren't going to the party with her the next week.

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阅读理解与欣赏

阅读下文,完成下面小题(12分)

县令丞簿史题名碑记

边贡(明)

⑴武乡吴侯令阳信①,以最称。收令与丞与簿若史者之姓名若干人列之碑,而树之于其听政堂之东,时正德辛巳夏四月之望也。

⑵顷之,村父老十数辈,长眉曳筇杖②,聚观之,按其名而数焉。至某也,则瞿焉,曰:“是某也,真父母也。吾祖也,吾父也,尝事焉。吾赋税外无私征焉,吾举室休休焉。吾儿时尚及见也。今安得斯人者来焉,为父母焉。”言已,则已慨焉,歔焉,啜啜焉,泣焉,咄而思焉③,爪其姓名弗忍移焉,恍焉若聆厥咳焉,盖与坐斯人于县堂而跪且拜焉者无以异也。又数之曰:“某也,某也。”则众也漠焉,若弗闻焉。又数之至某也,某也,则曰:“是某也,三老役焉④,某也者廷掾役焉⑤,亦载名于斯也!”目以笑焉。又数之至某也,则出口唾焉,曰:“是吏而盗者也。”已,又瞋焉,怒焉,以杖戳焉,若将铲其名。

⑶无或以告野史氏。野史氏喟焉,曰:“嘻!恶用是碑也乎哉!又恶用记乎哉!夫父老者之言斯尽矣。虽然,不可以不记也,亦不可以不碑也。使后之为令丞与簿若史者过而观焉,将问之父老曰:‘某循者乎?某良者乎?为若思也?某寻而常者乎?为若笑也?某酷者也?贪者也?为若怒焉者乎?’又思之曰:‘后之父老之指吾名也,将瞋焉乎?唾焉乎?漠焉而已乎?’盖问对之顷有感发焉,顾瞻之际有惩创焉,是侯之功也已。”

⑷侯名琦,字汝器,丁丑进士。其心也直以恒,其守也正以固,其政也仁以明,有父母之道焉。征最以去,予固知后之父老之观斯碑者,将爪其姓名而思焉,泣焉,歔且慨焉,为之庙社以春秋焉,盖不止恍焉若坐其人于县堂而跪且拜焉而已也。

注:①武乡:今山西武乡县。阳信:今山东阳信县

②筇杖:竹杖

③咄:表示惊诧的叹词

④三老:古代掌教化的乡官,帮助县令、丞、尉推行政令

⑤廷掾:县的佐吏。

小题1:对文题《县令丞簿史题名碑记》的理解最恰当的一项是(3分)()

A.县令、县丞、县簿和县史为碑题名落款,作者为此作记。

B.县令让人将历届县丞、县簿和县史等人姓名题刻于石碑,作者为此作记。

C.县令将历届县丞、县簿等人在县史上记录姓名,作者为此作记并刻于石碑。

D.题刻历届县令、县丞、县簿和县史的姓名于石碑上,作者为此作记。小题2:第⑵段“村父老”聚议态度鲜明,如对于□□的官吏“泣”而“思”,对于□□的官吏“目以笑”。(2分)

小题3:第⑵段划线句大量运用虚词“焉”,请鉴赏其表达效果。(3分)

小题4:第⑶段中两处划线句是否矛盾,为什么?(4分)