問題詳情
（ ）5. 坐標平面上四點 A ( 2 , －5 )、B、( 0 , 3 )，試求 
？（2-3）
(A) 4 
(B) 4 
(C) 2 
(D) 2 
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- 已知圓 O 的半徑為 6，扇形 AOB 的面積為 10π，下列何者正確？(A) ∠AOB=110° (B) ∠AOB=120°(C) π(D) π
- 如右圖(十七)，圓 O 及圓 Q 兩等圓外切並分別與直角三角形的其中兩邊相切，若∠B 為直角， ＝5， ＝4，則圓半徑為多少？(A)(B)(C) (D)
- 有一群體有九位成員﹐其身高分別為160﹐163﹐166﹐170﹐172﹐174﹐176﹐178﹐180（單位﹕公分）﹐此九人的平均身高為171公分﹒今隨機抽樣3人﹐則抽到3人的平均身高等於母體平均
- 用黑﹑白兩種顏色的正方形地磚依照如下的規律拼成若干圖形﹕拼第95個圖需用到____________塊白色地磚﹒
- The new sales strategies have _______ fruitful results so far.(A) avoided (B) concentrated (C) re
- 一台研磨機在運轉3秒後開始研磨咖啡豆，且之後運轉每秒可磨4公克的咖啡豆。若要磨x公克的咖啡豆，則研磨機要運轉幾秒鐘？(A) x (B) 4x (C) 3＋4x (D) 3＋ x
- y = ax + bx + c2(其中a 、b與c均為整數)的圖形為一個拋物線圖形。(A)O(B)X
- 設x為一正實數且滿足x．3x = 318﹔若x落在連續正整數k與k + 1之間﹐則k = ____________﹒
- The first task to _______ projects is to assemble the key persons in different departments.(A) di
- 多項式 中，其次數為a ，項數為 b，x3 係數為c ，常數項為d ，則 =_____0_____。
內容推薦
- 如下圖一，△PQS 是一個鈍角三角形，則 A、B、C、D 何者最有可能是△PQS 的外心？(A) A (B) B (C) C (D) D。
- 三、寫出下列各數的倒數【題組】(11) －
- A(n) _______ charge was incurred due to payment delay.(A) substitute (B) loan (C) overdue (D)inve
- 若二次函數 y＝ax2＋bx＋c 的圖形有最低點，其位置在 y軸的左方，則點 ( a , b ) 在第_15___象限。
- 甲乙兩人拔河時乙勝; 丙丁兩人聯手對抗甲時平手;乙丙兩人聯手時輸甲丁兩人聯手; 請問四人力氣大小關係為何?
- 以下敘述何者正確？(A) 當 的圖形有最低點，最低點坐標為(0, a)(B) 二次函數 的值必大於-5 (C) 所有正角錐的側面都是正三角形(D) 我們可以用判別式b2-4ac 是正數、負數或
- The old city hall will be _______, and soon be rebuilt as a new shopping mall.(A) preserved (B) d
- 坐標平面上有一透明片，透明片上有一拋物線y＝－2 ( x－1 )2＋5 及其上之一點 P ( 3 , 2 )。若將此透明片向右、向下移動後，與二次函數 y＝－2 x2＋12x-17 的圖形完全疊合
- a，b，c都是負數，若a ＞ b，則 a×c 和 b×c 的大小關係為何 ?
- 已知一長方形的長為 ？(A) (B) (C) (D) 14
- To renew the _______ of the magazine, a simple phone call will be enough.(A) subscription (B) de
- 設 WOWO 百貨公司 MP3 隨身聽每台售價 x 元時，每月可售出 ( 1000－x ) 個。已知每個 MP3 成本為 800 元，試問每台售價多少元時，每月可獲取最大利潤？此最大利潤為多少元？
- 若點 (3a-10,2a+9 ) 落在第二象限，則a的整數解有幾個?
- The waiter was carrying several greasy plates back to the kitchen after a group of _______ left
- The workshop provided _______ and effective methods to solve software problems.(A) tedious (B) re
- With months of practice, the shy boy _______ his stage fright and could finally speak confidentl
- Many travel agencies attended the International Travel Fair to distribute leaflets to their ____
- To get ready for the upcoming annual baseball _______, the organizer called for 150 volunteers f
- _______ it started raining, all students ran back to their classrooms.(A) As soon as (B) As fast
- Not I but Tony _______ going to the concert tomorrow evening. I have an appointment with my dent
- Ms. Huang filmed a video showing a _______ insect crawling on the sidewalk. No one had ever seen
- The candidate _______ his campaign speech before the protesters arrived.(A) has finished (B) was
- Since the government passed a _______ bill on job hiring last week, the square has been occupied
- 【題組】(A) denounce (B) compromise (C) debase (D)consider
- United Airlines was _______ criticized for its rude treatment to a passenger on board who didn’t