資訊推薦

• 27. 如下圖所示電路，開關S接通並達穩態，在t = 0時再將開關S打開，則在開關 S打開後之瞬間I， 值各為多少？ (A) I = 4A，IL = 5A，IC = 4A，VC =25V，VL =32
• 壹、作文題：題目：敬業。
• 9. 兩個電感 L1 = 12 mH、 L2 = 8 mH 串聯，且兩個電感之間無互感效應，若流過電感的直流電流為20A，則此兩個電感的總儲存能量為多少焦耳？(A) 2 (B) 3 (C) 4 (D)
• 10. 電阻與電容串聯電路，電阻為2 kΩ，電容為25μF，此電路的時間常數為何？(A) 12.5ms (B) 25ms (C) 50ms (D) 100ms
• 11. 兩個電壓時間函數v1(t)與v2(t)，若v1(t)的相位超前v2(t)為60 °，則下列何者正確？(A) v1 (t)=20 sin ( 314t–30 °)V、v2 (t)=20cos(3
• 2. The nucleolus in a cell nucleus is the site of(A)chromosome replication(B)uncoiling chromosomes(C
• 4. During glycolysis, how many net ATP molecule(s) does a molecule of glucose can generate? (A)0 (B)
• 3. What do we usually call the reactant in an enzyme-catalyzed reaction?(A)substrate(B)catalyst (C)c
• 6. What step in plant photosynthesis occurs the splitting of water and the generation of oxygen?(A)P
• 5. What step in cellular respiration occurs in the cytoplasm of eukaryotic cells?(A)Glycolysis(B)ATP
• 9. The cell surface receptors that can act only indirectly on plasma membrane-bound enzymes or ionch
• 7.What molecule is the electron donor for the light dependent reaction in plant photosynthesis?(A)ca
• 11 . There are 24 sister chromatids in a normal somatic cell. How many chromosomes are there?(A)8 (B
• 10. What enzyme phosphorylates MAP kinase?(A)MAP(B)MAP kinase (C)MAP kinase kinase((D)MAP phosphatas
• 8. Which type of plant can utilize the Calvin cycle?(A)C3 plants(B)C4 plants(C)CAM plants (D)C3, C4,
• 12.Which structures demonstrate the sites of crossing over?(A)chiasmata(B)centromeres(C)kinetochores
• 13.How many Barr bodies can be found in a diploid cell from a normal human female? (A)0 (B)1 (C)2(D)
• 16. Micro RNA (miRNA)can regulate gene expression by binding directly to(A)mRNA to prevent transcrip
• 15. If eukaryotic mRNA molecules contain non-coding sequences that can be removed before translation
• 14. During DNA replication, which enzyme removes the RNA primers and fills in the gap?(A)DNA pol I(B
• 17. There are two distinct domains for specific transcription factors in eukaryotes and they are(A)a
• 22. Some flowering plants show disassortative mating by preventing self-pollination and it increases
• 18. The most common DNA-binding motif is the(A)non-helical zipper(B)leucine zipper (C)zinc finger(D)
• 21.Which model organism we can find a complete cell lineage map?(A)C. elegans(B)Drosophila(C)mouse (
• 19. The enzyme dicer can chop dsRNA molecules into small pieces and they are(A)mRNA and miRNA(B)miRN