五、活動模板(slip forms)在某些特殊結構(如煙囪、水塔、倉庫、橋墩)中，具施工快速、經濟性、水密性高、無施工接縫及美觀等優點。試繪圖並解釋垂直式活動模板之結構及上升方式。（20 分）

V. Writing: Write a well-structured essay in which you argue for or against the following statement (in 200 words). 20 points Complaining is a good way of dealing with frustrations arising out of work. Give reasons for your answer and include any relevant examples from your own knowledge or/and experience.