The best way to conform to the opening and closing principle is to provide an inherent interface, and then let all classes that may change implement the interface, allowing fixed interfaces to interact with related objects.
Reason for Nomination: Through two undercover experiences and interviews with a large number of professionals, the reporter presented the background of the listing of China's crude oil futures from various angles, and interpreted the impact and future trend of crude oil after listing. The major event of "China's crude oil futures listing" has given the interface its own unique set of reports.
"Then it was the old method of tracing armour-piercing firebombs that repelled the attacks of the big wasps twice. There was another very special sound from the position. At first we thought there was another big wasp coming, But after looking at it for half a day, I didn't find anything. After a little while, It is also the kind of special sound that is getting closer and closer. Only then did I recognize that it was not the "buzzing" sound of the big wasp, But a sound of "knowing, knowing, knowing, knowing, knowing, Taken out with 'creaking', It's like a lot of people grinding their teeth together, Then a piece of black came running in the direction of the position. This time the direction is straight ahead, At first those things were far away from us and we could not see them clearly with our naked eyes. It was an instructor with a telescope who looked through the telescope and saw that the thing was a lot of mice. And they are all very big, After the news spread throughout the position, I have all my comrades, All ready for battle, Knowing that this is like one of those big wasps, It is certainly not a good fault, Just thinking of starting to fight the newcomers when it comes closer, I didn't think they were about 100 meters away from the position. It stopped suddenly, At the beginning of digging holes collectively, I felt that they were digging holes faster than running on the flat ground. One by one, they almost disappeared from the ground in an instant. Soon, a large area of dark mice disappeared. Looking through binoculars, on the ground where they disappeared, there were many holes the thickness of sea bowls, which were almost denser than craters.
爱钱的侦探、胡思乱想的房东和温柔的老好人，搞怪的侦探事务所开张营业……
等人肃静后，他看着白凡严厉地说道：白大人。
讲述三个反传统的洛杉矶女人（40多岁好朋友）不约而同跑到克里夫兰，又不约而同住进了同一间房子。当她们意识到当地人觉得她们「很有魅力」后，便决定留下来生活。Betty White扮演她们三人在克里夫兰（农场）的邻居，脾气不好，在那块土地上已经生活了50年。
At this time, iTunes will display a warning: "Your iPhone 7 has been detected" and you can restore your phone.
1. Soft and comfortable.
可见，饭可以多吃，话不可以乱说啊。
张大勇（陶大宇 饰）与干探李忠义（梁荣忠 饰）侦察一件件扑簌迷离的案件，很多案件都是案中案，谜团一个接一个，但他们还是能用自己的聪明才智揭露案情的真相，力求把犯罪分子绳之于法。他们的感情线也是同样曲折迂回：与沙展勇本是青梅竹马情侣的女友容金枝（苏玉华 饰），贪图富贵， 离开了勇却又与忠义有过一段情。记者高婕（郭可盈 饰）在与阿勇共同查案的过程中擦出了爱的火花，但由于婕本身就有男友，两人的关系进退两难……
我就不往前面去了，晚上也在这后面住。
2. Click the "Environment Variable" button under the "Advanced" tab in the pop-up "System Properties" window.
讲述一副神奇的画卷从几百年前流落到现代，没有人知道这幅画卷的秘密，拍卖行准备以古董拍卖。但是一名博士从古文书中得知了这副画卷的神奇之力。
Don't be funny upstairs, the level of pilots is not one for fighting and one for smoking. What age is it when recruits finish going to veterans? Is it a crowd tactic? In the integrated modern war, the outdated theory of using recruits first should have been eliminated long ago.
So far, the four modes have been simply analyzed, hoping to give everyone an intuitive understanding.
