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• 7.平面非共點力系，若以力多邊形與索線多邊形求解合力時，當力多邊形與索線多邊形皆閉合，則合力為何 ？ (A) 零 (B) 一單力 (C) 一力偶 (D) \u0004一力偶與一單力
• 8.摩擦力之方向與物體運動或是即將運動之趨勢方向的關係為何 ？ (A) 平行且相同 (B) 平行且相反 (C) 垂直 (D) \u0004無關聯
• 9.某一飛行器在半徑為 2R 之圓周上繞行一周，回到原處，其位移為何 ？ (A) 0 (B) πR (C) 2πR (D) \u0004 2R
• 10.某輛火車共行駛 300 公里，前 30 公里以 60km\/hr 的速率行駛，接著 120 公里以 40km\/hr 的速率行駛，最後 的 150 公里以 100km\/hr 的速率行駛，
• 11.若不計空氣阻力，由高度 449 公尺的台北 101 大樓自由放下一小鋼球，請問此鋼球到達地面的瞬時速度為何 (假設 g=10m\/sec2 )？ (A) 44.9m\/sec (B) 67
• 12.某硬碟之碟盤以 7200rpm 進行等速率轉動，若此碟盤半徑為 3.5 英吋，試求此碟盤之角速度(rad\/sec)為何 (A) 120π (B) 144π (C) 240π (D) \
• 28. 如下圖所示，根據克希荷夫電流定律，試求電流 I 最接近以下何者？ (
• 2. For an AVL tree with 2021 nodes, let x be the minimum possible height, y be the maximum height,
• 3.For a 2-3-4 tree of height 5, let x be the minimum possible size, y be the maximum possible size,
• 4. For a binary heap of height 2021, let x be the minimun m possible size, y be the maximum possibl
• 5. Consider a binary heap that results from suc successively inserting keys 6, 3, 7, 8, 5, 1,2, 4, 9
• 6. A binomial heap contains 2021 items. . How many among them have depth 7? (A)165 (B) 170 (C) 175 (
• 7. If Dijkstra algorithm is implemented with Binomial heap as priority qucue, then the complexity is
• 8. If Djjkstra algorithm is implem ented with Fibonacci heap as priority queue, then the con (A)O(I
• 9. If Dijkstra algorithm is implemented with binary heap as priority queue, then the complexity is (
• 10. If Dijkstra algorithm is implemented with doubly-linked list as priority qucue, then the complex
• 13.如【圖 13】所示，有一質量為 m 的小球自半徑為 r 半球面邊緣自由滑下，設此半球面表面光滑無摩擦，請 問當小球滑到半球面底部瞬間，此小球壓於半球面壁上的力量為多少 ？ (A) 1mg (B
• 2. A: How often do you wash your hair? B: ______ (A) Every two days (B) Sometimes (C) In the evening
• 3. I’m ____ to a concert of Jolin Tsai with my friends tonight. (A) doing (B) having (C) going (D) t
• 4. How _________bread do you need? I can take some to you. (A) many (B) much (C) far (D) long
• 5. _____the music, please. I am reading. (A) Turn on (B) Turn down (C) Turn up (D)Turn around
• 6. _______ if I stay up late tonight, Mom? (A) Did you mind (B) Is it Ok (C) Could you (D) Would you
• 7. He called me _____ I was watching a movie. (A) when (B)if (C)since (D)because
• 8. It _____ fifteen hours to get there by plane. We were all tired! (A) has taken (B) take (C) taken
• 9. I am so _____ to give a speech on stage. I can’t help shaking. (A) relaxed (B) nervous (C) pleas