資訊推薦

• 30.有一個直圓錐，其底面圓的半徑和其高等長。請問做哪一種變換後，所產生的新直圓錐的側表面積最大？(A)底半徑不變，高變為原來的2.5倍(B)底半徑變為原來的1.5倍，高不變(C)底半徑變為原來的1.
• 【題組】(二)此城市人口失業率估計量的標準誤的估計值?
• 【題組】(三)此城市人口失業率估計量的95%近似誤差界限B?
• 【題組】(四)此城市人口失業率的95%近似信賴區間?
• 32. 設 x, y 為實數，且已知3x+4y=-2. 試求 x2+y2-4x+2y+3的最小值(A)2 (B) (C) - (D)-2
• 1.( ) 「有水的地方，才見智慧的光芒萬丈；有水的地方，才見壯志千里，柔情蕩漾。聖哲孔子立在水濱，憂戚地感嘆道：『逝者如斯夫，不舍晝夜！』在這一聲嘆息中，隱含著多少對人世的悲憫，多少個人對人類的責任
• 24 一複合梁斷面如圖所示，材料 A 與材料 B 的彈性模數分別為 210 GPa 與 70 GPa。若中性軸位置距梁底部為 y，則 y 最接近下列何者？ (A) 165 mm (B) 160 mm
• 4. 設 α , β , p, q, r , s 為實數，，如果 tan α 和 tan β 為方程式 x 2 − px + q = 0 的二根，且 cot α 和 cot β 為方程式 x 2 −
• 二、若一母體分成三層,且各層母體總數為N1=30，N2=600與N。N3=500。又根據過去的調查結果知道這三層的母體標準差值分別為S1=150，S2=75與S3=100,設各層配置比例分别為P1=P
• 31.下圖是某校某次段考學生數學成績的累積相對次數折線圖，中間有一部分被墨水塗汙，只知道90~100分的有80人，70~80分的人占全校的23%，請問60~70分的有多少人？ (A)23(B)28(C
• 17. 有甲、乙、丙、丁四個條件：（甲）a 為正數 （乙）b 為正數 （丙）c 為正數 （丁）d 為正數。已知 a＞b，c＞d，請問還要甲、乙、丙、丁中的哪些條件成立，才能得到 ac＞bd？(A)只要
• 18. 以 x 2 + 2 x + 3 除 ( x 2 + 3x + 4) 3 所得餘式為下列何者？(A) x +1 (B) 2x + 2 (C) − 2x − 2 (D)4
• 2 This best-selling bag is made of _________ leather, not artificial.(A)genius (B)genuine (C)genetic
• 3 Puppy Guesthouse provides reliable sitting service and friendly _________ for your pets when you s
• 4 The school _________ were criticized for not responding promptly and properly to the issues of bul
• 5 Mr. Morgan strongly _________ of his daughter’s marriage to a divorced man and refused to attend t
• 6 An apple a day keeps the doctor away. But eating only an apple a day for three months _________ ta
• 7 In summer, many women stay under umbrellas or wear hats with wide brims in order to avoid ________
• 8 The national health guideline suggests that each adult should take at least 30 minutes of physical
• 9 A series of movies will be shown to _________ the 30th anniversary of the hero’s death.(A)commemor
• 10 According to the poll, anti-war _________ was gaining ground because people were frightened by th
• 11 Nick tried to _________ his father to buy him a smartphone, but in vain.(A)disobey (B)expect (C)c
• 12 _________ the author passed away twenty years ago, his stories live on.(A)Until (B)Because (C)Sin
• 13 Being a _________ means having no private life at all； the media will follow you all the time. Th
• 14 Much to my surprise, Jack was energetic though he didn’t sleep a wink for two _________ days.(A)c