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Based on BIM technology, it can dynamically display the installation of important parts in advance and provide virtual reality information for construction scheme discussion and technical exchange. Subway construction may have an impact on the surrounding buildings. BIM technology can simulate the impact of subway construction on the surrounding buildings. Combined with reinforcement technology, it can judge whether the arrangement between various components is reasonable, control the construction progress, carry out comprehensive quality inspection and observation on the construction, dynamically simulate the change trend, and put forward improvement measures.The first scheme is to use the general coding method to realize the preloading technology of the picture. First, create the imgNode element, Then when the method myImage.setSrc is called, a preloaded picture is given to the picture first, and when the picture is loaded, the img element is assigned a value. The second scheme is implemented by using proxy mode. MyImage function is only responsible for creating img elements, proxy function ProxyImage is responsible for setting loading pictures for the picture, and when the picture is really loaded, myImage.setSrc method in myImage is called to set the path of the picture. The advantages and disadvantages between them are as follows:曾经大学的风云人物，特例独行的赵晓棠，在校期间一直追求者不断。赵晓棠自己也非常出色，成绩优秀，申请了国外院校。在与慕海复合后，赵晓棠一心一意帮助慕海创业，放弃了出国深造。然而，两人结婚多年，彼此的矛盾越发明显。1. To carry out and study the important thought of "Three Represents", we must take practical actions. The decisions and measures of the Party committee of the Group Company and the behaviors of the members of the Party committee of the Group Company have effectively reflected the requirements of the "Three Represents".　　莫怀仁派儿子莫天赐前去封茶山，谁知莫天赐对刘三姐一见钟情，想把三姐娶回家。莫怀仁派管家拿着金筷子前去提亲，遭到三姐拒绝，并斗歌挫败了三秀才，赢得茶山，还组建了民间歌会，起名长乐坊。大明刑部狱卒叶小天接受委托，为人送遗书回故乡，遭到不想分割家产的那人家属追杀，逃入黔东。兵部要员艾枫以新任葫县典史前往黔东，调查权贵杨应龙图谋不轨之事，被杨应龙派人杀害。葫县县令花晴风为逃避治安不利的责任，安排叶小天冒充艾典史。叶小天虽是狱卒出身，一身浑不吝的痞劲儿，他并未甘为傀儡，在典史任上，他打击豪绅恶霸，把葫县搅了个天翻地覆，更因缘际会，成为真正的葫县典史，由此开始了他的仕途之路。升任铜仁府推官后，叶小天依旧独善其身，不与尸位素餐浑浑噩噩的无为官吏为伍，为了冤死的民女，他怒斩纨绔恶棍，由此身陷绝境，却也受到了地方百姓的爱戴和贵州爱国大土司的赞赏，最终成为一方土司官。始终坚信明照天下，虽土司治下亦是王土的叶小天联合贵州爱国大土司，遏制野心勃勃的杨应龙扩张，成为朝廷的一道坚实藩篱。Joystick Support-If you want to use a joystick device on the computer, select and enable the joystick.