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(A) These components increase the total cost of a solar energy system.
(B) Solar energy is the only renewable energy technology that is not available today.
(C) One solution is to locate large-scale solar electric systems in deserts or marginal lands.
(D) However, solar energy is not produced at night and can also be unreliable due to cloudy weather.

20 (A) Closing the tubes improved the frogs’ ability to hear high frequencies and ultrasounds, while opening them increased sensitivity to low-frequency noises. (B) Further studies of the amphibian’s hearing showed that its eardrums vibrate in response to ultrasonic noises, but only some of the time. (C) By contrast, the frogs have evolved the biological equivalent of earmuffs to block out all sounds of a certain frequency range. (D) In other words, the frogs’ tunable ears are an adaptation to their noisy home environments.

21 (A) There is no doubt that the frogs’ hearing ability is still crucial to their survival. (B) Closing the tubes improved the frogs’ ability to hear high frequencies and ultrasounds, while opening them increased sensitivity to low-frequency noises. (C) Further studies of the amphibian’s hearing showed that its eardrums vibrate in response to ultrasonic noises, but only some of the time. (D) In other words, the frogs’ tunable ears are an adaptation to their noisy home environments.

22 (A) One solution is to locate large-scale solar electric systems in deserts or marginal lands. (B) Solar energy is the only renewable energy technology that is not available today. (C) In those places where there are no electrical lines, solar power can be used instead. (D) However, solar energy is not produced at night and can also be unreliable due to cloudy weather.

23 (A) They are also reliable and quiet, and can be installed quickly and easily. (B) Solar energy is the only renewable energy technology that is not available today. (C) One solution is to locate large-scale solar electric systems in deserts or marginal lands. (D) However, solar energy is not produced at night and can also be unreliable due to cloudy weather.

25 (A) These components increase the total cost of a solar energy system. (B) One solution is to locate large-scale solar electric systems in deserts or marginal lands. (C) In those places where there are no electrical lines, solar power can be used instead. (D) However, solar energy is not produced at night and can also be unreliable due to cloudy weather.

1 對於資料庫系統三層綱要架構而言，若某一層綱要改變但不需變動次高層的綱要，此特性稱為： (A)資料映射 (B)資料獨立 (C)資料相依 (D)功能相依

2 假設一個關連式資料表儲存著 20 筆學生資料，每筆資料都包含四個欄位。依照關連式資料模型的術語， 這個關連的階度（degree）是： (A)4 (B) 20 (C) 80 (D) 24

3 在三層式主從架構的 Web 應用系統中，何者負責處理客戶端要求並發出資料存取指令？ (A)使用者介面層 (B)應用伺服器層 (C)資料庫伺服器層 (D)實體層

4 本身沒有鍵值屬性的實體型態稱為： (A)強實體型態 (B)組合實體型態 (C)部分實體型態 (D)弱實體型態

5 假設在關連 R 中屬性 X 功能相依於屬性 Y，則下列敘述何者正確？ (A)對於 Y 屬性值相同的兩個值組來說，其 X 屬性值必相同 (B)對於 X 屬性值相同的兩個值組來說，其 Y 屬性值必相同 (C) R 中屬性 Y 必定也功能相依於屬性 X (D)屬性 X 比屬性 Y 更適合擔任關連 R 的主鍵