筒灯直径

　　Rules of the Den 　　Like any good institution, Dragons' Den relies on rules. Without these, the Den would be a much more chaotic place. Presenter Evan Davies will often refer to these rules during his commentary. Here are the basics - the eight golden rules that shape presentations and negotiations. 　　RULE 1: THE PITCH 　　Entrepreneurs must start the meeting by stating their name, the ... (展开全部)