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• 25.下圖中輸出信號與輸入信號之比 為何? (A)1(B)2(C)3(D)0.5
• 26.下列何種二極體常在電子電路中作為參考電壓源?(A)發光二極體 (B)蕭基(Schottky)二極體(C)稽納(Zener)二極體 (D)透納(tunnel)二極體
• 27近年廣泛用於變頻器之功率晶體GBT,其元件無下列哪個端點?(A)基極(base) (B)集極(collector) (C)射極(emitter) (D)閘極 (gate)
• 28.有關 SCR (silicon controlled rectifier)的敘述,下列何者正確?(A)SCR在順向偏壓時自然導通 (B) SCR在順向偏壓時觸發後才導通(C) SCR在逆向偏壓時
• 29在電晶體放大器的分類中,當輸入信號為正弦波時,下列何種放大器在一個週期中導通比例最高?(A)A類(Class A) 放大器 (B)B類(Class B) 放大器(C) AB類(Class AB)放
• 30在電晶體放大器的分類中,當輸入信號為正弦波時,下列何種放大器之效率最低?  (A)A類(Class A) 放大器 (B)B類(Class B)放大器(C) AB類(Class AB)放大器 (D)
• 1 在討論人格自我形成的理論中，下列何人的理論多來自於臨床心理學的經驗？(A)顧里 (B)米德 (C)佛洛伊德 (D)艾瑞克森
• 2. Which one is the best answer that how do corals react when sea water temperatures are too high?(A
• 3. Which one of the following is the best example of a +/- interaction?(A)Competition.(B) Predation.
• 4. Metagenomics is a new research field that offers a DNA-based approach to understand ______.(A)the
• 5. The probable extinction of the ivory-billed woodpecker was mainly driven by______.(A)genetic drif
• 6. Living organisms can be used to detoxify aquatic ecosystems after an oil spill, a technique known
• 7. Albinism in most animals is an epistatic trait characterized by a lack of melanin pigment in the
• 8. The Y substance is needed for the proper phenotypic expression of the A, B, and AB blood types in
• 9. Two molecules with identical molecular formulas but that have different structures are called ___
• 10. The_____ functional group can possibly provide covalent bond and then promote the tertiary struc
• 11. If a specimen contains 30% adenine in its DNA then how much cytosine will there be_____.(A)15%(B
• 12. The Endosymbiosis Theory best describes the origins of _____ in eukaryotes.(A)endoplasmic reticu
• 13. Sucrose and H+can move into the cell by a common membrane protein reflects transport through a _
• 14. Which one of the following processes will both occur in the presence or absence of oxygen?(A)Gly
• 15. Which one of the following is the most correct of the TCA cycle?(A)In the reaction of electron t
• 16. About the mitochondria, which one of the following is more incorrect?(A)The most cells contain a
• 17. About the light reaction of photosynthesis, which one of the following is the best answer?(A)Pho
• 18. About the ATP production in the light reaction of photosynthesis, which one of the following is
• 19. In C4 plants, the gaseous CO2 can be fixed by ______.(A)oxaloacetate(B) phosphoenolpyruvate(C) m