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Next, we will talk about the responsibility chain mode. There are multiple objects, each of which holds a reference to the next object, thus forming a chain on which requests are passed until an object decides to process the request. However, the sender does not know which object will process the request in the end, so the responsibility chain mode can be implemented to dynamically adjust the system without concealing the client. Let's look at the diagram first:1942年，白山黑水的关东大地上，独立营与日军的一场厮杀，几乎全军覆没；只剩下六个人撤离了战场两年后，死里逃生的营长江雪原找到这六个已回归各自寻常百姓生活的战士，重建独立营，在敌占区与日军大部队展开一次一次的游击战，过程中收编了黑风岭上的匪帮，壮大队伍，与日军一次次展开斗智斗勇的生死较量，在中华大地上谱写了一曲荡气回肠的战斗之歌。真的假的？林思明竟然要涉足网络文学。220. X.X.253Similarly, there are other plants whose ancestors were clearly insect-borne plants, but they slowly began to try to use the wind to spread pollen. They are becoming more and more independent of petals and nectaries, and these structures necessary for nectar production are becoming more and more irrelevant and even useless. Instead, some structures used to attract Russian (the wind god in ancient Greek mythology) slowly appeared on them, such as spikes of inflorescences on male flowers, allowing winds from all directions to take away pollen. Stamens of gramineous plants no longer hide in corollas like caves, but have long and thin ends like grains, swaying freely in the wind. At the same time, the pistils of these plants are also actively adapting to new pollination methods, and they have given creative answers to the question of how to successfully capture pollen in the air. For example, hazel trees and sanguisorba trees have grown luxuriant red stigma. These bright stigma are like dexterous tentacles, which can immediately capture pollen blown by them.我就是个丫头，上面还有我爹、我哥哥，你们说，他们为啥一定抓我这个丫头片子呢？鲁三和胖子就惊疑不定起来。Li Qiang watched the operation of the assembly workshop of COMAC through real-time video. Photograph by Chen Zhengbao