問題詳情
20. 右圖達靈頓電路中若每個晶體β=150,RE=680 Ω,則Rin輸入電阻為?
(A) 680 Ω
(B) 7.24 MΩ
(C) 15.3 MΩ
(D) 26.5 MΩ

(A) 680 Ω
(B) 7.24 MΩ
(C) 15.3 MΩ
(D) 26.5 MΩ
參考答案
答案:C
難度:適中0.666667
統計:A(0),B(4),C(10),D(0),E(0)
內容推薦
- 23 (A) borrow (B) change (C) exchange (D) lend
- a下列關於電晶體共射極且無旁路電容之射極回授偏壓電路之敘述,何者錯誤?(A) 可改善工作點穩定度(B) 具有電流負回授之功能(C) 與有旁路電容之射極回授偏壓電路比較,電流增益降低(D) 與有旁
- 10 As used in the passage, the phrase call forth is closest in meaning to(A) answer (B) distract
- 2 INQ(Index of Nutritional Quality)所表達的營養密度,是以多少食物量所含的營養量為標準?(A) 1000 cal (B) 1000 kcal (C) 1000 Mj
- (四)food-based dietary guidelines
- 22 (A) poor (B) sick (C) sorrow (D) unhappy
- 下列何者為卸載閥 。
- 9 It is hard to explain to the parents that their children are spending money studying leisure b
- 18 Paul: Good bye. I will see you tomorrow.Anna:________________ .Paul: Oh, I almost forgot!Anna: We
- 下列何者不是整地的目的?(A)改善土壤物理性質(B)降低生產成本(C)增加土壤保水力和保肥力(D)減少病蟲害。
內容推薦
- 2 Why did Nadia ask if the taxi-driver could see the man across the road?(A) She wanted him to k
- 7 在營養諮詢中「傾聽」(listening)是一項重要項目,「傾聽」所包含的六步驟中不包含下列那一項目?(A)了解(understanding) (B)記憶(remembering) (C)回應(r
- (二)可能發現的營養及飲食生活問題?
- 19 Mary: Can you give me a ride to school?John:________________ .Mary: How long do you need to finis
- 12 David: Why are you so excited today?Danielle: ________.David: Have you read it?(A) I got a presen
- 3 How did the young man feel while he was waiting for Nadia?(A) He was at ease. (B) He was excit
- 24 (A) got down (B) shut down (C) knocked down (D) took down
- (三)舉例說明學童飲食營養問題改善方法。
- 3 下列數值為李老先生的禁食血脂質濃度,若參考行政院衛生署公布的高血脂評定標準,請問依據那項判斷他罹患高血脂症?(A)血清三酸甘油酯 180 mg/dL (B)血清總膽固醇 240 mg/dL(C)總
- 13 Mary Ann: Hello, my name is Mary Ann.Paula: Hi, I’m Paula.Mary Ann: I really like your dress. ___
- 4 Why did Nadia want to take a taxi at last?(A) To get to the department store as soon as possib
- 8 在 PRECEDE-PROCEDE 的營養教育模式中,教育方面的診斷不包含下列那一項?(A)性向因素 (B)行為因素 (C)促成因素 (D)增強因素
- 灌溉時考慮水量多寡的因素不包含(A)土壤性質(B)氣候環境(C)作物種類(D)水中氧的濃度。
- 20 A: Do you want the mirror over the sofa or by the door?B:________ What about the end table?A: Let
- 14 Jane: My parents have been married for twenty years.Helen: When did they first meet?Jane: _______
- 5 How long was Nadia late for?(A) Half an hour. (B) One hour fifteen minutes. (C) Fifteen minute
- 9 根據營養師法第二十九條:未取得營養師資格,擅自執行第十二條第一項各款營養師業務者,本人及其雇主各處新臺幣多少元之罰鍰?(A)一萬元以上,五萬元以下 (B)二萬元以上,十萬元以下(C)三萬元以上,十
- 4 在評估健康人的休息熱能需要量(resting energy expenditure, REE)時,Harris-Benedict equations 的計算公式中未考慮那一項因素? (A)性別 (
- 15 Mary: Do you want to try this on? I think it suits you.Jane: ________.Mary: The dressing room is
- Questions 6-10 are based on the following passage: One of the most popular fields of study for colle
- 10 陳小姐已具備營養師證照,目前準備至臺中縣大甲鎮某團膳公司上班。依據營養師法第七條之規定,請問她應向那一單位機關申請執業登記,領有執業執照後始得執業?(A)行政院衛生署 (B)台中縣衛生局 (C)
- 5 評估尿液營養素排泄量,時常以尿中的那一項物質,來確認 24 小時的尿液收集是否完整?(A) Potassium (B) Sodium (C) Urinary nitrogen (D) Creati
- 16 John: What do you do?May: I’m working as a secretary for ABC Computers downtown.John: No kidding!
- 11 健康食品管理法民國 88 年公布,已經多次修正,請問最近一次修正是於民國幾年?(A) 95 年 (B) 93 年 (C) 91 年 (D) 89 年
- 6 某縣市衛生局在執行「幼兒餐點營養改善計畫」前,先蒐集各幼托中心之供餐資料。這步驟是屬於營養教育計畫內容之那一部分?(A)確認問題 (B)訂定目標 (C)研擬對策和執行計畫 (D)評價計畫成效