問題詳情
24. 在座標平面上，方程式y＝2x2－9的圖形交x軸於A、A′ 兩點；方程式 
的圖形交x軸於B、B′ 兩點；方程式 
的圖形交x軸於C、C′ 兩點。比較 
的長度，下列關係何者正確？
(A) 
(B) 
(C) 
(D) 
參考答案
無參考答案
內容推薦
- 在坐標平面上，若二次函數y＝( x＋2 )2－3圖形的頂點為A，四條直線 x＝－x＝x＝x＝－22與此二次函數交點依次為P、Q、R、S，則四條線段 的長度大小關係為何？(A)
- 煙火自地面點燃發射，經過x秒後的高度為y公尺，x與y的關係式為y＝6x－9x2。則煙火經過a秒後可到達最大高度為b公尺，則a+b=？(A) (B) 8 (C) 6
- 附圖是一個底圓直徑12，高為10的圓柱。若貫穿上、下底面挖除一個底邊長為4的正四角柱，試問下列敘述何者正確？(鏤空立體圖形的表面積含內部角柱的側面積) (A)鏤空立體圖形的表面積 。 (B)
- 下列有一面國旗是線對稱圖形，根據選項中的圖形，判斷此國旗為下列何者？(A) (B) (C) (D) 。
- 附圖的長方體中， 。若點P、Q分別在 上，試問下列敘述何者錯誤？ (A) 的長度為 。(B)有一隻螞蟻沿著長方體表面，欲從C點爬行至E點，其最短路徑為 (C) 的最小值為 。 (D) 的最小值
- 下列敘述何者正確？(A) 周角的一半稱為直角。(B) 鈍角三角形可以有兩個內角為鈍角。(C) 如果有一條弦通過圓心，此弦就是直徑，而直徑是最長的弦。(D) 等腰三角形頂角的角平分線不會垂直平分底邊
- 下列敘述何者正確？(A) 816+815+814+813+811+812是一個等差級數。(B) 2+4+6+8+...+98+100=(2+100)✖100÷2。(C) 等差級數20+18+16+
- 【題組】Which is not true（不正確的）? (A) Sun Lake was dirtyten years ago. (B) Sun Lake is clean now. (C) T
- 【題組】Where can people ride bikes in the city? (A) The bicycle lane. (B) The coffee shops.(C) The re
- A: Does your mom like movies?B: Yes, she goes to the movies every weekend.A: ______. That’s a lo
內容推薦
- My husband ________ me into jogging twice a week. That’s why I’m good at it now.(A) pulled (B) hop
- Earth Hour is a global event ________ is held on the last Saturday of March every year. People tur
- ________ people in downtown Taipei live in ________ because there are so many people but not enoug
- Pixar, the American Animation Studio, has made fourteen movies ________ kids around the world enjo
- Alice ________ from her seat and said worriedly, “The wind is ________. I’m afraid the ________ on
- Someone who talks loudly ________ do not care about ________.(A) in public places； how do people t
- ________ is Jessica’s mother. She just came back from a meeting ________ in Taipei.(A)The beautifu
- When we got to the beach, ________.(A)the whale had been moved away(B) the sun has already gone do
- Michelle: Hey, Jason. Stop drinking bottled water. That’s harmful to the Earth.Jason: Why? I recy
- Which is WRONG?Judy: These riddles are so difficult. It’s almost impossible for us to win first p
- Which is WRONG?We can find our friends ________ in seconds by means of social networking websites
- Which is WRONG?Joseph: I’ve set up a website to help poor students study after school.Patty: ____
- Which is CORRECT?(A)We didn’t give up until the finish line was in sight—winning is the only thin
- Which is CORRECT?(A)The farmer working in the heat of the sun used to being a lawyer.(B)Visiting
- 【題組】(A) as soon as (B) so that (C) ahead of (D) what if
- 【題組】(A) making a living (B) who will make ends meet(C) that had made money (D) raises a family of
- 【題組】(A) are fixed with (B) are taken care of (C) are covered with (D) are turned into
- 【題組】(A) she sees as gifts (B) that she did not mind(C) which she provides for her children (D) she
- Mary: What is_____name? John: He’s Fred. (A) her (B) he (C) he’s (D) his
- _____ are Fiona, and_____is Shrek. (A) I； she (B) They； you (C) You； he (D) You； I
- Jill: How’s your_____? Lisa: They’re fine. Thank you. (A) grandpa (B) grandma (C) uncle (D) famil
- They are _____and _____ . Their son is a good doctor. (A) brother； sister (B) father and daughter
- Is _____? (A) that a book good (B) that good book (C) that book good (D) book that good
- Meg: Is Mr. Wilson a teacher? Tom: _____ (A) Who is he? (B) No, he is a doctor. (C) He is very ni
- Mia: Is he our teacher? Jill: _____(A) Yes, she is. (B) No, you aren’t. (C) Yes, he is. (D) No, w