資訊推薦

• 28 有關 p 型矽(Si)半導體，下列敘述何者正確？ (A) Si 半導體的能帶比金屬小 (B)電洞是移動電荷載體 (C)它的導電性能不如純矽 (D)它是藉由在 Si 中摻雜 P 或 As 製成的
• 29 水是人類賴以生存的生命之源，下列有關水的敘述何者錯誤？ (A)純水在 4℃時密度為最大 (B)比熱大，對調節氣候極為重要 (C)汽化熱大是因分子間引力大所造成 (D)介電常數小，故為良好的電解質
• 30 某理想氣體在 300 K 與 10 atm 條件下，其體積為 20 公升。若壓力不變，體積減為 10 公升，此時溫 度為何？ (A) 600 K (B) 300 K (C) 150 K (D)
• 31 相同材料與容積的甲、乙及丙三個容器，分別加入一大氣壓的甲烷、乙烷及丙烷三種氣體，假設此些 氣體皆為理想氣體，下列性質何者相同？ (A)容器內氣體的重量 (B)容器內氣體的比重 (C)容器內氣體的
• 32 下列何者為路易斯鹼？ (A) B(OH)3 (B) H2O (C) (D)
• 33 硬水中含有等離子，可通過離子交換管柱將其代換成鈉離子，若 2,000 升的硬水中含有0.01M 的與 0.003 M 的，則需要用多少莫耳的鈉離子進行交換？ (A) 13 (B) 26 (C)
• 34 0.1 M CH3COOH 水溶液其 pH 約為 3.0，同體積的 0.1 M CH3COOH 與 0.1 M CH3COONa 之混合水溶 液其 pH 約為 5.0。同體積的 0.1 M CH
• 35 下列何種方式可製備緩衝溶液？①等體積之 0.5 M NaOH 與 1 M HCl ②等體積之 0.5 M NaOH 與1 M CH3COOH ③等體積之 1 M CH3COONa 與 1 M C
• 36 下列氧化物何者屬於共價化合物？ (A) ZnO (B) K2O (C) TiO2 (D) OF2
• 37 下列何者與硫酸銅(CuSO4)溶液反應後，可產生銅金屬？ (A)鎂帶 (B)氯化鈉 (C)金箔 (D)硼砂
• 38 下列原子或離子半徑大小的排序何者正確？ (A) (B) (C) N＞C＞B (D) O＞S＞Se
• 39 PVC 塑膠常用於製造雨衣、水管、電線、電纜的覆皮等，其材質可塑性極佳，其中文名稱為下列何者？ (A)聚丙烯 (B)聚苯乙烯 (C)聚氯乙烯 (D)聚酯乙烯
• 40 有關烷類化合物，下列敘述何者錯誤？ (A)直鏈烷類的沸點隨碳數增加而增加 (B)天然氣主要的成分為乙烷 (C)異辛烷(2,2,4-三甲基戊烷)之辛烷值為 100 (D)烷類可與氯氣進行反應
• 2 Local job growth has been solid in the past several years, despite fears of a(n)_______. (
• 3 In a highly industrialized and commercialized society, people tend to become_______empty, thoug
• 4 Right at the gate of the art museum stand two large figures_______out of rock. (A) carved
• 5 The explosion was caused by a gas_______ from the water heater. (A) beak
• 6 The company has also_______ an application software that enables clients to design their own ho
• 2 The more public transportation is used, the smaller a city’s carbon footprint is. This is becaus
• 7 The legislator said he was resigning but refused to_______ on his reasons to do so. (A) co
• 8 The agent gained entry into the government building _______ a bribe to the guard. (A) by m
• 3 Vehicle cybersecurity is essential because autonomous cars must____with one another to share
• 9 An airplane pilot was removed from a fully boarded plane and arrested on suspicion of being ___
• 4 Placed strategically throughout the house, certain good luck plants are believed to bring p
• 10 Jason used to work for a telephone company as an engineer, but he is _______and enjoying a care