資訊推薦

• 65.三相∆ 型連接平衡負載，連接於三相平衡電源，電源線電壓有效值為 220V，且已知每相負載阻抗為o 10∠60°Ω，則此負載消耗的總有效功率為多少？
  (A) 4191W(B) 7260 W(C)
• 1. 100V / 100W之電燈泡的電阻為多少Ω？(A) 1000 Ω (B) 100 Ω (C) 10 Ω (D) 1 Ω
• 6.（ ）附圖為一電解電容，試問甲、乙兩腳的極性為何？ (A)甲為正極、乙為負極　(B)甲為負極、乙為正極(C)兩腳無極性之分
• 52.R-L-C並聯電路中，R=50KΩ，L=3mH，C=75nF；若電路接於 =120∠0°特之交流電源，則其電路品質因數Qp為何?(A)25 (B)50(C)125 (D)250
• 48.一粗細均勻的銅線被剪成長 1：2 的兩段，再將此兩段拉成長度比為 2：1，則此兩段之電阻比為何？(A) 1：8 (B) 8：1 (C) 4：1 (D) 1：4
• 49.有一平衡三相電路，線電壓為 220 伏特，用二瓦特計法以量測其總電功率，其中一讀數為 36kW，另一讀數為 20kW，試求此電路的總電功率，總無效電功率及功率因數？(A) 56kW，40kVAR
• 67. The molecule shown here is acetylsalicylic acid (aspirin). What kind of electrical charge doesas
• 53.調整 (圖 53) 中負載阻抗RL與XL之值，使負載得到最大率，此時負載所消耗的最大功率為多少瓦特? (A)18(B)25(C)36(D)44
• 68. The brain produces most of its energy by the oxidation of glucose； during long-term fasting.howe
• 69. Which of the following reactions is not the reversible reaction in glycolysis?(A) Glucose 6-phos
• 70. Which amino acid is the common donor for methyl transfer?(A) Met(B) Ala(C)Gly(D) Ser(E) Lys
• 71. Which of the following best describes the metabolic outcome of glycolysis for the degradation of
• 72. Which step of the TCA cycle can generate GTP directly?(A) Citrate to isocitrate(B) Isocitrate to
• 73. Fatty acids with 14 or high carbons require_________for transport into mitochondria.(A) glycerol
• 74. The mutation that oceurs in sickle cell anemia belongs to_________.(A) silent mutation(B) missen
• 75. Which of the following is with the same binding site as O2 in hemoglobin?(A)CO(B)CO2(C) NO2(D) 2
• 76. The synthesis of I molecule of cholesterol requires_________molecules of isopentenyl pyrophospha
• 77, Which of the following nucleoside analogs is used against HIV?(A) 2',3'-Dideoxycytidin
• 78. The process of "sugar modification" to proteins starts in the_________?(A) endoplasmic
• 79. Very low-density lipoprotein (VLDL) is a lipoprotein produced by the liver and circulated in the
• 80. In protein structure. disulfide bonds are formed by two__________.(A) Ser(B) Tyr(C)Cys(D) Asp(E)
• 81. Sphingomyelinase catalyzes the conversion of sphingomyelin into________.(A) ceramide and acetylc
• 82. Dietary polysaccharides are metabolized by________to monosaccharides； intracellular carbohydrate
• 83. What is the major purpose of the pentose phosphate pathway?(A) Generate NAD' for oxidative
• 84. Within the electron transport chain, complex _________ represents the entry point for electrons