5. Find customers through your competitors
For interface programming, a lot of changes that may occur in the system in the future can be isolated. Why? If the code is written for an interface, he can implement the interface with any new class through polymorphism. However, when the code uses a large number of specific classes, once new specific classes are added, the code must be changed. Violating the opening and closing principle.
苔湾府建成，游民落地分田，甚至本地夷人也开始往来府城，用打到的毛皮、野味交换粮食布匹，甚至是白银铜钱。
The third is that due to the low sense of scene in online learning and the weak restriction on students, the completion rate of students may be relatively low.
直到这时，他才说出来。
平武不由的暗暗心惊，若是再这样下去，自己必败无疑。
皇帝在后宫夜夜笙歌，沈湎於酒池肉林中，白莲教主顾允成一心推翻昏君，派出得力弟子钱一本和女儿顾芙蓉行刺狗皇帝。
飞狼第一季
At the beginning, it was said: "As soon as we were born, we were in an old world. There were many rules of the game to abide by, otherwise we would be out of the game. How to live is always the subject of living."
However, there are other software developers who, when designing programs, always name classes with similar patterns, such as so-and-so Facade, so-and-so Factory, etc. In fact, the contents of the classes have nothing to do with the design patterns at all, but are only used to flaunt that they understand the design patterns.
众人心头一震，秦人捣乱挑拨之前也有想过，毕竟楚国人高出这么大动静，秦人不可能没有应对。
7.2 Tuberculosis is unqualified.
饶是如此，彭越开门见山问道：刘夫人一路远道而来，辛苦了，不知道夫人前来有何见教。
他发现，有些话跟小娃儿很难说清。
之前，有递拜帖的，或是邀请赴宴的，一律被刘总管挡了，言道王爷才回家。
森永高中由互看不顺眼的\"北校区文化生\"和南校区体育生组成，两校区在“你死我活\"模式下相处多年，水火不容。这一年，学校为瞻应上级政策决定“文体”两校区合并。这条消息让学生们彻底作开了锅，要命的是：北校区的学器元彩希，明泽羽和南校区的扛把干尹正赫都被升到了三年二组，还成为了同桌！从此森永高中开启了\"易燃易爆炸\"的合班新纪元。从“对立，到“理解\"少年们共同成长，联手为荣誉面战。
First, the standard of Putonghua should meet the "Putonghua Proficiency Test Grade Standard" issued by State Language Commission, Grade II, Grade B and above standards.
