問題詳情
18. 設P( - 2 , 4)與Q(2 , - 2)，若直線L：ax + 3y + b = 0為 
的垂直平分線，求a + b之值為何？
(A)
(B) -
(C) -
(D)
。
的垂直平分線，求a + b之值為何？ (A)
(B) -
(C) -
(D)
。
參考答案
答案：D[無官方正解]
難度：適中0.5
統計：A(0),B(2),C(2),D(2),E(0)
內容推薦
- 18 一均質彈性材料 B 為矩形斷面，其厚度為 4 mm，容許拉力強度為 120 MPa。現以兩支直徑為 16 mm之螺栓固定於一剛體材料 A 上（如圖所示）。若螺栓之容許剪力強度為 30 MPa，則
- People in Taiwan have the reputation of being very friendly and h____etoforeigntourists; they ar
- 【題組】The purpose of this article is to_.(A)warn people against the danger of stress(B) emphasize
- For further information, please see the____filein the email.(A) attach (B) arrange (C) attached (
- IV.閱讀測驗30% There is scarcely anyone who hasn’t heard the proverb, “No pain, no gain.” It means that
- 【題組】Based on the reading, which of the following statements is TRUE?(A) We worry about the futur
- 0下列漫畫中，最足以形容美國農業在經營上的何種特色？ (A)單位面積產量高 (B)單位勞力產量高 (C)大量使用肥料 (D)高度專業化。
- Being a teacher in Taiwan is pretty cool, because of the importance given to teachersin Chinese cult
- 【題組】The word “squandering” can be replaced by .(A)seizing(B) repaying(C) accelerating(D) wasting
- 【題組】(A) rise (B) raise (C) arise (D) arouse
內容推薦
- The flowers____aftertherain.(A) blossom (B) surge (C) raise (D) extinguishe
- The wife asks her husband to share____ chores.(A) dogmatic (B) domestic (C) dogged (D) dutiful
- The room is__at the 10th floor. You may need to take the elevator.(A) locating(B) locate(C) locat
- 【題組】The “It” in line 9 refers to____(A) the average surface temperature of the earth(B) the scien
- Please____studentsintofourgroups.(A) change (B) transfer (C) transact (D) divide
- Mudslides are more likely to happen on b____n hills, because forested hills andmountains act as
- The tall son marks a sharp____withhisshortdad.(A) comparison (B) comparing (C) contrast (D) cont
- The city is culturally rich and diverse. There are____sightseeingspots.(A) numerous (B) numbers o
- 【題組】The greenhouse effect____.(A) did not have an influence on the earth until the Industrial Re
- 20 .____the strategy of learning foreign language, the teachershows his disapprovaladopted by the cr
- Some of the angry and irrational crowd s____ed forward, trying to attack the policeby throwing e
- The doctor informed her parents that the blindness caused by the disease would be g____t. That i
- The hospital is____after the founder.(A) heard(B) hear(C) name (D) named
- Next step, you need to apply to the ：____ forlicense.(A) authorities concerned (B) authority conce
- 21 The system of flood protection____NewOrleansandits____ parishespriortoHurricane Katrina evolved o
- One scoop of ice cream costs 1000 dollars! This is unreasonably expensive; it is e____e!
- The city was finally____byits enemies, (choose the wrong one)(A) besieged (B) beleaguered (C) ra
- As soon as I realized I had left my bag in the classroom, I ran back there to r____e itand was r
- 【題組】According to the passage, which of the following statements is TRUE?(A) Business enterprises
- The court____ cognizance of the murderer’s words.(A) checked (B) made (C) permitted (D) took
- Life is unpredictable and full of surprises. No one can f____e what will happen andthat is exact
- To stop the argument, the two boys met halfway, reaching a c____e and then sharedthe table with
- His unusual height____him to become a professional basketball player.(A) admits(B) pursues(C) per
- 【題組】55 .____ is NOT mentioned in the passage.(A) The relation between human activity and global warm
- 下列何種類群可最先生活在火山爆發後冷卻的熔岩上？(A)蕨類 (B)地衣 (C)苔蘚植物 (D)針葉樹