資訊推薦

• 41.有關亞鐵離子與水中的溶氧反應產生三價鐵離子之敘述，下列何者正確？(A)水中的鈉離子可加快此反應的速率(B)此反應的速率與水中的溶氧濃度無關(C)亞鐵離子與氫氧根離子於酸性的 pH 值下容易產生氫
• 42.重鉻酸鉀為分析化學需氧量的藥劑，如果重鉻酸鉀的分子量為 M，則重鉻酸鉀的當量重為何？(A) M (B) M/2 (C) M/3 (D) M/6
• 43.一個沉澱池的處理量為每天 500 立方公尺，沉澱池的長寬高分別為 5、4 及 3 公尺，則沉澱池的溢流率為多少(m3/m2-d)？(A) 25.0 (B) 33.3 (C) 41.6 (D) 5
• 44.廢水中的硝酸鹽濃度為 30 mg/L，則廢水中的硝酸鹽氮濃度為何？(A) 3.38 (B) 6.77 (C) 13.54 (D) 27.10
• 45.有關廢水生物脫氮程序之敘述，下列何者正確？(A)是利用微生物將硝酸鹽氮還原成氨氮(B)生物脫氮的程序需要於厭氧或缺氧的反應槽中進行(C)進入生物脫氮程序的廢水中的氮主要是亞硝酸鹽氮(D)傳統生物
• 46.活性碳吸附溶液中之污染物質的特性，常用等溫吸附模式來表示。有關等溫吸附模式的敘述，下列何者正確？(A)等溫吸附模式是用來描述活性碳與污染物質達到平衡狀態下的情況(B)吸附劑之吸附容量是指一公克的
• 47.有關過濾池濾料的敘述，下列何者錯誤？(A)雙層濾料過濾池上層的濾料通常為無煙煤(B)雙層濾料過濾池上層濾料的有效粒徑較小(C)雙層濾料過濾池上層的濾料比重較小(D)濾料有效粒徑為濾料篩分析得到累
• 48.下列何者可能不是添加有機高分子混凝劑(polymer)去除水中顆粒的機制？(A)壓縮電雙層 (B)電性中和 (C)掃除機制 (D)架橋作用
• 49.有關兩階段化學氧化程序處理含氰化物廢水的敘述，下列何者正確？(A)氰酸鹽中的碳原子氧化數為+2(B)氰化氫中的碳原子氧化數為+4(C)第一階段的氧化程序以次氯酸將氰離子氧化成氰化氫(D)第一階段
• 50.一垃圾樣品之濕基物理組成，廚餘類佔 40%，且含水率為 75%。垃圾樣品中其它物質的含水率為15%。則廚餘類占此垃圾樣品之乾基物理組成的百分比為何？(A) 16.4 (B) 19.6 (C) 3
• 7. 機關間請求協助事項，屬勞務之委任，不論是否涉及公權力行使，應依政府採購法規定辦理。(A)O(B)X
• 27. My niece screamed in ________ on seeing her birthday gift—AirPods she had dreamed of receiving.(
• 28. As the violent typhoon raged on, we were ________ in the house, unable to go anywhere.(A) reserv
• 29. As the head ________ of this award-winning restaurant, Archie is always creating new recipes.(A)
• 30. Before sharing news, search online for facts and ________ the information so that you won’t beco
• 31. Anna found it hard to adjust to the ________ climate when she moved to Thailand. The heat was to
• 32. Considering consumers’ tighter budget, Apple is expected to release a more ________ model this s
• 33. As the government is stepping up efforts to put the disease under control, the tourist industry
• 34. The singer Elton John apologized to his fans after he lost his voice and ________ to cut a conce
• 35. Allen looked upset when he gazed at the picture, ________? I wonder what he was thinking about t
• 36. Your brother seems to have a crush on the girl ________ father owns the restaurant across the ro
• 37. All you need to do when preparing for big exams ________ study hard and do enough practices.(A)
• 38. ________, the more mental workouts you get. That is, regular reading keeps your brain active.(A)
• 39. _______ the spread of COVID-19, one must ensure that their hands are free from germs. Washing ha
• 40. Willy is filled with regrets. If he ________ smoking years ago, he might not have lung cancer no