問題詳情
1.若並求此時的x、y之值。x、y均為正數，且xy = 50，試求x + 2y的最小值
參考答案
答案：B
難度：非常簡單0.945513
統計：A(1),B(295),C(0),D(10),E(0) #
個人：尚未作答書單：蘭克(史學家)
內容推薦
- It was not that I was annoyed at her avidity but I was really struck with the _____ between such
- 【題組】(A) in (B) through(C) with(D) on
- 若不等式ax2 - bx - 3 ＜ 0的解為- 1 ＜ x ＜ 3，則a + b之值=____________。
- The English-Irish boy band has developed a strong and oftentimes rabid _____ since the release of
- As we move toward a capitated health system， it will be imperative for health care organizations
- 一元二次不等式2x2 ＞ x2 + 2x + 3的解為____________。
- 下圖顯示：～ 年間，「地球」生病了，躺在床上，有三位當時掌握世界權勢的醫生聯合診斷。這三位中，最右邊的是史達林，中間的是羅斯福。試問，左邊那位最有可能的是誰？
- 不等式2 - 2x ＞ - 3(4 + x)的解為____________。
- 長、寬、高分別為a、b、c之長方體，若2a + b + c = 6，則此長方體可能的最大體積為____________。
- 一位女士回憶某一事件說：「當時全家被困在政治孤島之中，物資極度缺乏，連牛奶、衛生紙及冬天取暖用的煤，都是美軍利用飛機，搭起空中橋梁運送進來。這種生活大概持續了一年，直到蘇聯軍隊解除封鎖，情況才得以
內容推薦
- Sometimes, I feel discriminated against, but it does not make me angry. It merely 21 me. How can any
- What are your _____ for deciding which words to include in this dictionary?(A) kinship(B) prejud
- Abandoning everything to the greedy grasp of those around her, the mother darted, with distractio
- 圖示不等式的解： - x + 2y ≤0
- 【題組】(A) above(B) midst(C) into(D) from
- 【題組】(A) miscellany(B) gold(C) proximity(D) straws
- Do not, I beg of you, _____ today’s sun with the showers of tomorrow.(A) dampen(B) prejudice(C)
- From the first my fellow-pupils used to tease and _____ and mock me whenever I was saying my less
- 解不等式: 【題組】(1)x2 + 6x + 9≥0
- III. 篇章結構：16%，每題2分Consumer behavior consists of the actions that consumers take in regard to making
- 【題組】(A) established(B) formulated(C) crumbled(D) populated
- All during the first year Louise tried to make her husband understand the vague and _____ hunger
- While you _____ one sin and will not part with it, it must drag you down to misery after death, a
- 【題組】 (2)x2 + 6x + 9 ＜ 0
- 【題組】(A) without(B) by(C) in(D) after
- II. 克漏字：30%，每題2分The McDonald’s Corporation has become a powerful symbol of America’s service economy
- Many corporations create their cash flow or financing channels through _____ because they can obt
- 邊長5 m、4 m、3 m的直角三角形電路，通以2 A電流，置於方向向右且強度3 T的均勻磁場中。若電路的平面與磁場方向平行，則整個線圈所受之磁力與磁力矩各為何？ (A)磁力0、磁力矩0 (B)
- 【題組】(A) Also(B) However(C) Even if(D) Perhaps
- 【題組】(A) appropriated(B) estimated(C) calculated(D) understood
- Though I knew how to translate exactly what she had told me, I realized that any translation woul
- 【題組】(3) - x2 - x + 12 ＞ 0
- 在不等式組的條件下，試求f(x,y) = x + y - 2的最小值。
- 【題組】此地灌溉水源為下列何者？ (A)地下水 (B)河水 (C)雨水 (D)高山雪水。
- The men called and listened as she had done, and examined the edge of the chasm, and settled how