題庫堂
檢索
題庫堂
首頁
數學
英文學習
政治學
統計學
經濟學
藥理學
中醫藥物學
財政學
法學知識
公共行政
警察學
BI規劃師
財務管理
公共衛生學
工程經濟學
電力電子學
當前位置:
首頁
142. BJT 電晶體可以工作在截止區、線性區、和飽和區。下列哪一項關係式在此三個工作區中都是成立的 (A) (B) (C) =0.2V (D)
問題詳情
142. BJT 電晶體可以工作在截止區、線性區、和飽和區。下列哪一項關係式在此三個工作區中都是成立的
(A)
(B)
(C)
=0.2V
(D)
參考答案
答案:D
難度:
計算中
-1
書單:
沒有書單,新增
上一篇 :
【題組】185.What was Samantha Jagger's concern about booking an In-Person Wild Encounter fromBronni
下一篇 :
【題組】192.What happens if contributions are not submitted by the deadline?(A) They will be rejected wi
資訊推薦
【題組】193.What is the purpose of Linda Kim's email to Tracy Bishop?(A) To ask Tracy to write an a
【題組】194.What does Linda Kim believe will benefit the staff of the company?(A) Tracy Bishop's ex
【題組】195.Which of the following is NOT mentioned as an important aspect of workingcollaboratively wit
Questions 196~200 refer to the following news, conversation, and email.TCIMM News Last month, Anders
【題組】197.According to the news, what is the key takeaway from this experience?(A) It is essential for
【題組】198.What was the main takeaway from the conversation?(A) Companies should avoid new venues.(B) V
【題組】199.According to the conversation, what compensation did the VP offer Mr. Anderson?(A) A full re
【題組】200.What is the CEO's commitment regarding the upcoming event in his email?(A) To provide a
Questions 186~190 refer to the following email, table, and comments.Subject: Healthy Employees Day -
102. 如圖所示電路,若電流表 A 指示值變大,下列何種現象是正確原因? (A)R2 被短路 (B)R2 斷路 (C)R1 斷路 (D)電源電壓 E 變小
2. 下列何者不是螺紋之功用?(A)鎖緊機件 (B)量測 (C)減少摩擦 (D)傳遞動力。
3. 若 M8 × 1 表公制 V 牙螺紋,外徑 8 mm,螺距 1 mm,則螺紋之牙深為多少 mm ?(A)0.65 (B)0.75 (C)1.3 (D)1.5。
4. 車床導螺桿為下列何種螺紋?(A)鋸齒形牙 (B)60°V牙 (C)方形牙 (D)梯形牙
5. 規格為 M20 × 1.5 × 60–1 之螺栓,下列說明何者不正確?(A)外徑 20 mm (B)螺距 1.5 mm (C)螺紋長度 60 mm (D)為公制三角形螺紋,一級配合。
6. 下列有關墊圈之敘述,何者最不正確?(A)螺旋彈性墊圈之斷面為圓形 (B)普通墊圈一般係以軟鋼、熟鐵或銅製成 (C)齒形墊圈具有防振之功用 (D)防止螺帽鬆脫,可使用彈簧墊圈。
7. 可傳遞最大扭矩的鍵是何種鍵?(A)半圓鍵 (B)栓槽鍵 (C)圓鍵 (D)方鍵。
8. 如圖所示,有一長 100 cm 之槓桿,利用一鍵與半徑 5 cm 之軸連結,若鍵長 4 cm,橫斷面為每邊 1 cm 之方鍵,若鍵容許剪應力為 20MPa,則作用於桿端之力量中最大為多少 N?
【題組】187.Which fitness program is led by a coach and incorporates a wide range of exercises toimprove
【題組】188.Which of the following features is shared between Yoga and CrossFit programs?(A) Both focus
【題組】189.What did David Perry appreciate about Sarah Tatum's Resistance Training program?(A) She
【題組】190.What did Zoe Magee and Simon Stone have in common in their experience with theprograms offer
Questions 191~195 refer to the following information, web page, and comments. London's Natural
103. 如圖(a)(b)所示,每只電燈皆為 12V,10W,則此六只電燈之明亮程度順序為 (A)A=B>C>D>E>F (B)C>A=B>F>D=E (C)C>F>A=B>D=E(D)C>A=B>
9. 定位銷的主要功能在使兩機件:(A)使一機件能繞著定位銷在另一機件上旋轉 (B)相對的位置能夠確定 (C)夾緊在一起 (D)一塊機件在另一機件上作正確的滑動。
10. 螺旋壓縮彈簧的兩端磨平,其主要目的為何?(A)增加美觀 (B)減少重量 (C)增加接觸面積 (D)節省材料。