資訊推薦

• 29. 利用接觸面之間的摩擦力使機件或機構減速甚至停止下來是哪一種制動器？ (A)機械式制動器 (B)流體式制動器 (C)發電機制動器 (D)渦電流制動器
• 30. 在一般皮帶輪傳動中帶輪的輪面，常製作成中央隆起之形狀，其主要目的為何？ (A)減少帶輪震動 (B)增加帶輪強度 (C)防止平皮帶脫落 (D)增加傳動速率
• 31. 摩擦輪傳動是屬於何種運動對？ (A)高對 (B)低對 (C)力鎖對 (D)螺旋對
• 32. 有關起重滑車的敘述，下列何者敘述正確？ (A)與槓桿相同的作用原理 (B)動滑車可改變施力方向但不能改變作用力大小 (C)惠斯頓差動滑車的定滑輪二槽輪直徑差愈大機械利益愈大 (D)惠斯頓差動滑
• 33. 下列哪一種彈簧吸收負載的能量最大且常用於卡車的避震裝置？ (A)單片彈簧 (B)疊板(板片)彈簧 (C)螺旋扭轉彈簧 (D)拉伸彈簧
• 34. 當一圓沿著一直線或圓周滾動時，此圓的圓周上一點的軌跡稱為何種線條？ (A)漸開線 (B)阿基米德螺旋線 (C)擺線 (D)圓錐螺旋線
• 35. 在CNS工程製圖規範中，幾何公差符號 “○”表示為何種公差？ (A)圓柱度 (B)真直度 (C)真平度 (D)真圓度
• 2. What causes a differentiating B cell to become committed to producing only one species of antibod
• 18. 關於下列分子敘述何者正確? (A) I 和 II 為 enantiomers (B) III 和 IV 為 enantiomers (C) II 和 III 為 same compound (
• 3. Which of the following about neuron is incorrect? (A) It is a polarized cell. (B) Peripheral nerv
• 4. In the life cycle of an angiosperm, which of the following cells or tissues are diploids? (A) gen
• 5. The black dots that cover strawberries are actually individual fruits from a flower with multiple
• 6. During splicing, which major molecular component of the spliceosome catalyzes the excision reacti
• 7. Which of the following statements regarding the body plans of animal is correct? (A) Cnidarian ar
• 8. In a phylogenetic tree, a group is composed of some species but not their most recent common ance
• 9. Bioluminescence is an important strategy for attracting preys in which of the following marine zo
• 10. Which of the following descriptions regarding sensory receptors is correct? (A) Sense of smell i
• 11. Which statement is incorrect concerning protein translation? (A) Ribosomes in prokaryotic and eu
• 12. Testosterone is synthesized primarily by the ________. (A) Leydig cells (B) hypothalamus (C) spe
• 13. Which of the following orders regarding mammalian embryogenesis is correct?1. cleavage2. gastrul
• 14. Which of the following descriptions regarding the embryonic germ layers is correct? (A) Pituitar
• 15. Which of the following about chloroplasts and mitochondria is incorrect? (A) They are of the app
• 16. ________ are commonly referred to, respectively, as the 21st and 22nd amino acids. (A) Selenocys
• 17. Which of the following sequences is not found in an E. coli vector (such as pET21)? (A) replicat
• 18. Which of the following metabolic pathways is strictly anabolic? (A) glycolysis (B) gluconeogenes