题目内容
Where is the dictionary
查看答案
搜索结果不匹配？点我反馈
更多问题
Christmas is coming. It is celebrated(庆祝) every year on December 25 and it is the most celebrated holiday in the world. It is celebrated in Europe, North America, South America and in every country that has been touched by western culture. Christmas celebrates the birth of Jesus Christ. Today, most people who celebrate Christmas are not Christians(基督徒). They celebrate the holiday because Christmas is an opportunity for people to show the "good feelings" they have for each other. Christmas is called "the season of giving". It is the time of year when people give gifts to others to show how much they love them or just to show how much they appreciate(感激) them. We give gifts to our family and we also give gifts to close friends. Many people also give gifts to people who have performed services for them through the year, like the postman or the cleaner. And Christmas is the time of year we remember that many people are less fortunate than us: the poor, the sick and the lonely; and we try to help them in any way we can. People who celebrate Christmas are Christians.
【说明】 该程序运行后，输出下面的数字金字塔 1 1 2 1 1 2 3 2 1 1 2 3 4 3 2 1 ...... 1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 【程序】 #include ＜ stdio. h ＞ main ( ) } char max, next; int i; for( max = ’1’; max ＜= ’9’; max + +) { for(i=1;i＜=20- (1) ;++i) printf(" "); for(next = (2) ;next ＜= (3) ;next ++) printf(" %c" ,next); for(next= (4) ;next＞= (5) ;next--) printf(" %c" ,next); printf(" \n" ); } }
UML提供了4种结构图用于对系统的静态方面进行可视化、详述、构造和文档化。其中 (17) 是面向对象系统建模中最常用的图，用于说明系统的静态设计视图；当需要说明系统的静态实现视图时，应该选择 (18) ；当需要说明体系结构的静态实施视图时，应该选择 (19) 。
Supermarket’s New StrategyOne supermarket in Tokyo has managed to solve the problems of shoplifting, mistakes by cashiers, and long lines of customers waiting at the cash registers. It is Japan’s advanced computer technology that has come (51) with the answers.Shoppers at an OK supermarket on the outskirts of the city now push a cart (52) a plastic card chained to it and buy from glass cases where the goods are on display. The plastic card has a magnetic number imprinted on it. Each customer carries his or her own card, which is (53) at the exit. While shopping, the customer pushes the card into a slot beside whichever items are wanted and pushes a button or two. The glass covered vending machines are connected to a computer that (54) the price of every item in the store. Prices of every purchase are added up automatically. (55) she has finished shopping, the customer hands her card to a cashier who (56) it into the register. A second later the (57) pops out.Shoplifting is physically impossible. Once you touch a commodity the computer remembers it no matter how you hide it or (58) you eat it on the spot.A cashier at the OK supermarket is now able to work 15 times faster than her (59) at a conventional supermarket. Only two cashiers, (60) , are required at the store, which (61) 2,500 separate items. One man is enough to keep the vending machine filled, because whenever the stock for a certain commodity is (62) to run out, a red lamp in the computer-room (63) him.But there are disadvantages too: a customer cannot (64) his or her mind about a purchase. Once touched, the item cannot be put back. The customer must (65) a cashier with it first and get a refund later. There are also no fresh vegetables or fish on sale—everything is prepackaged. 58（）。
微信支付 
支付宝支付