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• 23. 圖(四)是電晶體 Q 驅動發光二極體 (LED) 的電路，若此電晶體當開關使用，輸入的電壓Vi 為5 V，則 LED 亮時，輸出電壓 V0的近似值為多少？  (A) 0 V(B) 5 V(C)
• 9 v. to produce; to design; to make; to manufacture(A) anchor (B) route (C) inflict (D) create
• 2 v. to arrange in proper order(A) coordinate (B) advertise (C) call (D) litter
• 3 v. to esteem; to regard highly; to become more valuable(A) cover (B) name (C) appreciate (D) case
• 2 adj. inner; inside; located within; of a country's domestic affairs(A) credible (B) internal
• 8 adj. customary; routine; formal(A) conventional (B) fair (C) downward (D) residential
• 10 v. to communicate data to; to tell; to brief; to notify(A) administer (B) inform (C) scratch (D)
• 3 n. commercial transaction; instance of offering goods at a reduced price; demand for merchandise;a
• 4 v. to tempt or tease by presenting something as available and then withholding it(A) lecture (B) a
• 3 adj. done over again(A) dynamic (B) base (C) repeat (D) robust
• 9 adj. rational; logical; intelligent; wise; plausible; likely; credible(A) reasonable (B) widesprea
• 6 n. ability; skill; trait; characteristic; quality(A) adamant (B) society (C) capability (D) awaren
• 4 v. to impersonate; to act in a role; to claim; to assert(A) expose (B) oversee (C) impact (D) pret
• 5 v. to imply; to suggest; to hint(A) connote (B) drill (C) caution (D) idealize
• 4 adj. whole; including every part; complete; full(A) concrete (B) entire (C) sophisticated (D) regu
• 10 adj. available on a regular basis; employed to handle merchandise or goods(A) reticent (B) outsta
• 7 n. shipping of goods to other countries(A) export (B) entertainment (C) final (D) coverage
• 5 n. act of forcefully taking possession of an area; seizure; conquest; possession or settlement of
• 5 adj. estimable; determinable; assessable(A) opportune (B) instant (C) measurable (D) remarkable
• 4 n. heart of the matter; main point(A) version (B) lawyer (C) sign (D) crux
• 3 n. slope; grade; slant(A) coin (B) consumption (C) gymnasium (D) incline
• 8 n. expression of admiration; word of praise for someone(A) composition (B) compliment (C) discipli
• 6 v. to annoy; to bother; to aggravate; to anger(A) search (B) subtract (C) irritate (D) figure
• 6 v. to assume; to anticipate; to hope(A) expect (B) amend (C) paint (D) wait
• 6 adj. intelligent; clever; shrewd; lively; fashionable; stylish(A) excellent (B) initialed (C) smar