69. 電路元件的串並聯，形成一個複雜的電路結構，一般而言，電路元件中的電阻的並聯，會將此電路的整體電阻值如何改變？
(A)增加
(B)減少
(C)不變
(D)以上皆非

70. 自動門是日常生活中常見的科技產品，它綜合了許多技術，及相互間的整合與協 調，才能完美的執行任務。下列何者比較不屬於其所有的技術內容？ (A)感測 (B)控制 (C)微處理器 (D)大數據分析

71. 家庭的電流是交流電，其頻率為何？ (A) 30HZ (B) 60HZ (C) 90Hz (D) 120Hz

72. 下面哪一個描述最不符合人工智慧的意義？ (A)是一門製造能夠像人類一樣思考的機器的科學 (B)可以以不同於人類的方式，運用快速處理與計算的計算機能力來做出超越人類智能的表現 (C)人工智慧的目標是能夠像人類一樣識別模式、做出判斷和決定等 (D)人工智慧仰賴操作該機器的人類，來執行各階段的判斷和決定

73. Regarding 3D printing technology, which of the following statements is incorrect? (A) Fused deposition modeling uses heated materials that soften and then stack layer by layer to form a shape. (B) Stereolithography uses photosensitive resin and light exposure to solidify materials into a shape. (C) Laser powder sintering technology generates a large amount of waste during the manufacturing process. (D) 3D printing can be used for manufacturing industrial parts and medical models.

74. Regarding the use of sandpaper, which of the following statements is correct? (A) The smaller the grit number of the sandpaper, the rougher the surface. (B) The larger the grit number of the sandpaper, the rougher the sanding effect. (C) The grit number of the sandpaper is unrelated to the roughness. (D) The smaller the grit number of the sandpaper, the more suitable it is for the final polishing step.

75. Which substance in electronic waste produces dioxin? (A) Lead (B) Cadmium (C) Polyvinyl chloride (D) Copper

76. Regarding the operating principle of a DC generator, which of the following statements is incorrect? (A) A DC generator converts kinetic energy into electrical energy. (B) DC motors and DC generators can be used interchangeably. (C) A DC generator requires an external power source to operate. (D) The rotation of the motor's rotor generates current.

77. In the process of making LED lights, which measure is necessary to prevent LED lights from burning out? (A) Connecting a suitable resistor in series. (B) Connecting a suitable capacitor in series. (C) Connecting a suitable inductor in parallel. (D) Connecting a suitable transformer in parallel.

78. Which of the following descriptions about isometric drawings is correct? (A) Isometric drawings cannot simultaneously show three faces. (B) Circles in isometric drawings are drawn as ellipses. (C) Isometric drawings can only be hand-drawn. (D) Isometric drawings cannot display the actual dimensions of an object.

79. Circuit breaker is designed to protect the current overload of a circuit, and it is in the ____ with the circuit elements it wants to protect. (A) parallel connection (B) series connection (C) intelligent connection (D) wireless connection

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