資訊推薦

• 7. 有一部配電用變壓器容量 15 kVA，鐵損為 150 W，滿載銅損為 400 W，負載功率因數為 0.8，求其在半載之效率為何？(A) 95 % (B) 96 % (C) 97 % (D) 98
• 8. 有一部 20 kVA、2000 V / 200 V之變壓器，求高壓側與低壓側額定電流各為何？(A) 1 A、10 A (B) 10 A、10 A(C) 10 A、100 A (D) 100 A、
• 9. 有一部單相 3300 V / 220 V變壓器，若高壓側電阻為 90 Ω，則等效至低壓側的電阻值為何？(A) 0.4 Ω (B) 4 Ω (C) 40 Ω (D) 400 Ω
• 10. 有一部單相變壓器匝數比為 20：1，滿載時二次側端電壓為 100 V，一次側端電壓為 2080 V，則其電壓調整率為何？(A) 2 % (B) 3 % (C) 4 % (D) 5 %
• 11. 有關變壓器之三相△連接，下列何者正確？(A)線電壓= 相電壓 (B)線電壓=相電壓(C)線電流=相電流 (D) 線電流=相電流
• 68. Among 9 different molecules below, X of them can cleave disulfide bond, and Y of them canreact w
• 69. How many of the followings are ketogenic amino acid in human?Asp； Phe； Arg； Val； His； Thr； Lys.(
• 70. How many items of the followings have the activity of proof-reading to reduce the error rate inb
• 71. Which one of followings is NOT used for thymine dimer repair?(A) Daughter strand gap repair (B)
• 72. The pentose phosphate pathway of glucose oxidation produces ______.(A) coenzyme Q10 (B) FADH2 (C
• 73. The thickness of endoplasmic reticulum membrane is about 37.5 Å. Which one of the followingsis c
• 74. There are cholesterols and cholesterol esters in LDL. How and where are cholesterol estersgenera
• 75. Okazaki fragments are ______.(A) short DNA pieces that explain how DNA is synthesized on the lag
• 76. Which of the followings describes the initial bond formation in the covalent intermediate in the
• 77. Which of the following statements about farnesyl-linked proteins and glycosylphosphatidylinosito
• 78. What is an important component(s) to transport ammonia from skeletal muscles and the othertissue
• 79. Which statement about energy metabolism in patients with type I diabetes mellitus and poor blood
• 80. A young boy is unusually tall and presents with joint laxity and retinal detachment. Examination
• 81. How is DNA recombination achieved during meiosis?(A) Double-strand break recombination (B) Singl
• 82. What is the main pharmacological action of benzoate and phenylbutyrate, which are used to treatu
• 83. Which statement about the chain elongation of vertebrate fatty acids is NOT true?(A) It occurs o
• 84. P53 ______.(A) belongs to oncogene(B) regulates the activity of E2F transcription factor(C) cann
• 85. Retinoid acid ______.(A) can be converted to retinal in the body(B) participates in the synthesi
• 86. What type of DNA will be formed if a DNA segment has one all-pyrimidine strand and one allpurine
• 87. How many of the following molecules act as second messengers?GTP； calcium ion； cGMP； cAMP； inosi