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食品化學及食品品保技術

生物化學工程

普通化學、化工原理

115年 - 115 公共工程品管人員(土建班)題庫 1201-1250#130684(50題)

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115年 - 115 公共工程品管人員(土建班)題庫 751-800#130668(50題)

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115年 - 115 公共工程品管人員(土建班)題庫 801-850#130665(50題)

20. A uniform plate of mass M is placed on two fast-rotating identical wheels of radius r. The coefficients of kinetic friction between the plate and both wheels are μ, the distance between the centers of the two wheels is , the wheel on the right (left) rotates counterclockwise (clockwise) with angular speed ω (see Fig. 5), and the gravitational acceleration is denoted g. If the mass center of the plate is displaced by d from the center of the two wheels, what is the frequency the plate oscillates with? (Assuming the plate is so heavy that it always stays on the wheels.)(A) ω (B) (C) (D)

19. As shown in Fig. 4, an m1 = 1.0 kg block is placed on top of an m2 = 8.0 kg block, which lies on a frictionless surface. The coefficient of kinetic friction between the two blocks is 0.20; they are connected via a pulley and a string. A hanging block of mass m3 = 6.0 kg is connected to the mass m2 block via another pulley and string. Both strings are massless and the pulleys are frictionless. What is the acceleration magnitude of the blocks? (Gravitational acceleration g =9.8 m/s²) m1 m2 M3 Figure 4. A system composed of three blocks, strings, and pulleys. (A) 3.7 m/s² (B) 2.7 m/s² (C) 9.7 m/s2 (D) 8.0 m/s²

18. The effective resistance from a to b in Fig.3 is 4.0 2.What is the resistance of individual resistors in the circuit? (The resistances of all the individual resistors are the same.) (A) 4.02(B)2.0 Ω (C) 8.0 Ω (D) 0.8 2

(b) Use curved arrows to describe the detailed mechanism of these two steps. (8 points)

(a) Please draw two key resonance structures of diazomethane. (8 points)

2.Electrophilic aromatic substitution reactions of pyridine normally occur at C3. Draw the carbocation intermediates resulting from reaction of an electrophile at C2, C3, and C4, and explain the observed result. (14 points)

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課程：警察法規(上)
章節：警察人員人事條例

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課程：警察法規(上)
章節：警察人員人事條例

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課程：警察法規(上)
章節：警察人員人事條例

Getzels和Thelen將班級社會體系的構成要素，除了 外在的社會文化思潮、個人內在的有機體兩要素外，還包含下列何者。 a.制度 :b 團體. c.個人(A)ab (B)ac (C)bc (D)abc

46. Which one of the descriptions below about RNA polymerase III is correct? (A) is located in the nucleolus and transcribes the RNA genes of large and small ribosome subunits. (B) is located in the nucleoplasm and transcribes the protein-encoding genes through mRNAs. (C) transcribes the 5S RNA genes. (D) transcribes genes associated with tRNA processing. (E) transcribes tRNA genes and protein transport genes.

6 In the 17th century, Port Royal was considered the most______ port in the world because of its pirate activities, loose morals and tasteless displays of wealth. (A) deserted (B) luxurious (C) notorious (D) prosperous

32. 依據現行《國民小學及國民中學常態編班及分組學習準則》之規定，下列哪一項不正確？ (A)國中小之分組學習，以班級內實施為原則 (B)國中二年級得就英語、數學、自然科學領域，分別實施年級內之分組學習 (C)國中三年級實施年級內之分組學習，其中數學及自然科學領域，得合併為同一組 (D)國中二年級、三年級得依規定，以二班或三班為一組群，依學生特性，實施年級 內分組學習

43 依行政程序法、訴願法及行政訴訟法規定，關於寄存送達之敘述，下列何者正確？ (A)行政程序及訴願之寄存送達，自送達完畢時即發生效力 (B)訴願及行政訴訟之寄存送達，自送達完畢時即發生效力 (C)行政程序及訴願之寄存送達，自寄存之日起，經 10 日發生效力 (D)訴願及行政訴訟之寄存送達，自寄存之日起，經 10 日發生效力

44 關於政府資訊公開法規定之敘述，下列何者正確？ (A)與人民權益攸關之施政、措施及其他有關之政府資訊，不待國民申請，原則上即應主動公開 (B)國民申請提供政府資訊，以主張或維護其法律上利益有必要者為要件 (C)國民申請提供之政府資訊包含有侵害個人隱私之部分時，全部均不得提供 (D)申請提供政府資訊遭到拒絕而不服者，不得單獨就該拒絕決定提起行政救濟