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5.4 Pad description:[Teaching Methods of Weightlifting and Clean and Jerk Techniques: High Turn, Squat Turn and Upright Turn]人类围绕着最原始的欲望——住所和食物，爆发了席卷全世界的第三次世界大战。The journey to death usually enters the fast lane within the last 1-2 weeks of life, and some manifestations may make family members feel scared and uneasy, especially mental changes.日积月累的疲倦吞噬了兄弟俩残留的孝心，哥哥无奈离开了白发苍苍的母亲，恋恋不舍的离开了病床上的父亲。弟弟年少轻狂，出言不逊，母亲的病倒，让他彻底崩溃离家出走。面对哥哥和弟弟的相继离走，小云痛在心底，留下孤单的自己照顾双亲，正当一切仿佛平静中，母亲举起瘦弱的手，揭开了尘封多年的秘密，小云不知所措的翻出箱子里一张泛黄的信签，一阵婴儿的哭声打破天际…..几组蒙太奇镜头，婴儿的脸，赶着牛车的夫妇，夕阳西下的银铃般的笑声….信签顺着小云的手指滑落，泪水滴落在信签上…Open the course of "Gem Processing Technology", It is found that it is based on "Gem Processing Technology" written by Professor Liu Ziqiang of Jewelry Department of Jinling Institute of Science and Technology. Including six aspects of knowledge-a preliminary understanding of some gemstone raw materials, Understand the names, characteristics and development history of different gemstone cut styles, understand some basic equipment and accessories for gemstone processing, understand the processing principles and technological methods of gemstones, see the processing process of standard round polyhedral styles, and learn the processing quality evaluation of gemstones (including jadeite).小丫头走出偏殿后，禁不住淌眼抹泪起来。