题目链接: 传送门 Doctor time limit per test:1 second memory limit per test:256 megabytes Description There are n animals in the queue to Dr. Dolittle. When an animal comes into the office, the doctor examines him, gives prescriptions, appoints tests and…
题目描述 A pangram is a phrase that includes at least one occurrence of each of the 26 letters, ‘a’. . .‘z’. You’re probably familiar with this one: “The quick brown fox jumps over the lazy dog.”Your job is to recognize pangrams. For phrases that don’t c…
(p.s. 附带手写翻译,有错轻喷) Admin: Hi. (嗨) Doctor: How do you do? What brings you to see me? (你好呀,是什么带你来看我?) Admin: The wind. (风.) Doctor: Why do you say the wind? (你为什么说是风?) Admin: the wind touched my face and…
Natural Language Processing with Python Chapter 4.8 colors = 'rgbcmyk' # red, green, blue, cyan, magenta, yellow, black def bar_chart(categories, words, counts): "Plot a bar chart showing counts for each word by category" import pylab ind = pyla…
新概念英语(1-63)Thank you, doctor. Who else is in bed today? why? A:How's Jimmy today? B:Better. Thank you, doctor. A:Can I see him please, Mrs. Williams? B:Certainly, doctor. Come upstairs. A:You look very well, Jimmy.You are better now, but you mustn't…
An apple a day keeps the doctor away. 一天一苹果,不用请医生. 活学活用:apple as like as an apple to an oyster 毫无相同之处 The rotten apple injures its neighbours. [谚]一只烂, 烂一筐; 一个坏朋友可以影响一群好人. Throw away the apple because of the core. 因噎废食. upset sb.'s apple cart 破坏某人计划…
Null hypothesis usually express the phenomenon of no effect or no difference. TypeⅠerror is the incorrect rejection of a true null hypothesis. That is, no difference is taken as difference. Type Ⅱ error is incorrectly retaining a false null hypothes…
