資訊推薦

• 24. 比較一等熵過程、一多變過程，及一等溫過程，三種不同壓縮過程中所需加入的功，並假設三個過程均以內部可逆的方式作用於相同的壓力範圍間，而氣體為具有固定比熱的理想氣體。則何者需要的功最大？ (A)等
• 25. 某鍋爐實際蒸發量180kg，燃料發熱量為170000kcal， h2=650kcal/kg,h1=25kcal/kg,則鍋爐效率為多少%?(h1:給水焓;h2:給汽焓)？ (A)60.89 (
• 26. 關於大型船用柴油機的技術，每次邁進都會使這種極為重要的原動機的使用壽命得到延長。在過去的一個世紀裡，二衝程柴油機方面邁出了關鍵的幾步，下列何者不包括在內？ (A)無氣燃油噴射 (B)焊接式結構
• 8.家家作自然實驗，他將碳酸氫鈉粉末放在乾淨未加蓋的坩堝中加熱，產生二氧化碳、水及碳酸鈉，試問下列哪一個圖形表示坩堝及其所裝物質的質量變化？　(A) 　(B) 　(C) 　(D)
• 27. 如櫃中同時有油、水及不潔物質等三者混合在一起，且假定三者皆以直徑d的小圓珠存在。且 為水比重， 為油比重， 為雜質比重，g為重力加速度，則其油與雜質間的分離力應為 (A) (B) (C)
• 31. 預測反應 的△H 和△S 的符號（–、+ 或 0），依序為：(A) +, – (B) 0, + (C) +, + (D) –, –
• 32. 加熱碳酸氫鈉可製得碳酸鈉：2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)假設 25°C 下，此反應 △H° = 128.9 kJ/mol 和 △G° = 33
• 2.A:________ is safe ________ bikes around Taiwan.B: There are many convenience stores for people to
• 3.Studying English ________ very important.　(A)is　(B)am　(C)are　(D)can
• 4.It is difficult for them ________ this story.　(A)understand　(B)to understand　(C)understood　(D)unde
• 5._______ in the meadow is so wonderful.　(A)Picnic　(B)Picnics　(C)Picnicked　(D)Picnicking
• 6.Chloe: How long did it take Stella to walk ________ the bridge ________ the convenience store?Davi
• 7.We have to take enough rice with us. ________ is hard to get food in the mountains.　(A)This　(B)Tha
• 8.Online（線上的）games _______ interesting to children.　(A)is　(B)are　(C)looks　(D)be
• 9.Helping homeless（無家可歸的）animals _______ wonderful for people.　(A)is　(B)are　(C)look　(D)be
• 10.James and Jessica like to ride U-bikes to work. It only _______ them five minutes to get there.　(
• 11.Doing the dishes and doing the laundry（洗衣服） _______ convenient for modern people 　(A)is　(B)are　(C
• 12.Walking animals and feeding them _______ volunteers’ everyday jobs.　(A)are　(B)is　(C)can’t be　(D)b
• 13.A: _______ did it _______ to book the train tickets on this app（應用程式）?B: Only three minutes. 　(A)
• 14.He _______ play basketball with my brother at school tomorrow.　(A)×　(B)should　(C)will　(D)is to
• 15.Rafael and Brad are _______ to go camping in the mountains next weekend. 　(A)going　(B)go　(C)went　
• 16.________ does the computer cost my dad? 　(A)What 　(B)How much 　(C)How often　(D)How many
• 17.Nancy will _______ to the music thirty minutes later. She is busy working now. 　(A)not listened　(
• 18.Luka _______ going to read comic books（漫畫）with his friends tomorrow. 　(A)are　(B)is　(C)will　(D)do
• 19.What is she going to _______ after she does her homework?　(A)does　(B)did　(C)doing　(D)do