題庫堂
檢索
題庫堂
首頁
數學
英文學習
政治學
統計學
經濟學
藥理學
中醫藥物學
財政學
法學知識
公共行政
警察學
BI規劃師
財務管理
公共衛生學
工程經濟學
電力電子學
當前位置:
首頁
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
問題詳情
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)只要條件乙成立即可
(B)只要條件丙成立即可
(C)乙、丙兩條件中只有一個成立,都不足以得到 ac>bd 的結論,需要乙和丙同時成立
(D)必須四個條件同時成立,否則不足以得到 ac>bd 的結論
參考答案
答案:C
難度:
計算中
-1
書單:
沒有書單,新增
上一篇 :
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
下一篇 :
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
資訊推薦
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
15 Amy lost her legs in a car accident. Now she has to depend on her _________ legs to move around.(
16 A policeman was questioning two women who held the _________ to the murder mystery of the famous
17 The authorities have confirmed the criminal’s whereabouts from _________ information sources and
18 The evaluation was done _________ ; the evaluators were not requested to reveal their names when
19 You should make good use of this _________ to broaden your experience. Chances like this are rare
20 To improve the judicial system, the moral _________ of the judges is a prerequisite for considera
21 A: Do you come to concerts like this very often? B: No. _________ I have a lot of other interests
22 Sam: You know, I’m not going to John’s party. May: _________ Me either.(A)You aren’t? (B)Sure! Wh
23 Linda: Why don’t you quit smoking? Don’t you know it’s bad to your health?Jason: Of course I do.
24 題至第 27 題: Loneliness is not the same as being alone. A person can be just as lonely in a
【題組】25 Which of the following is NOT true about chronic loneliness?(A)It is mostly imposed from outs
【題組】26 Which of the following words may have the similar meaning as the phrase “get in the way of”?(