問題詳情
D.某次數學測驗共有 題單一選擇題，每題都有五個選項，每答對一題可得 分，答錯倒扣 分。某生確定其中 題可答對；有 題他確定 個選項中有1個選項不正確，因此這 題他就從剩下的選項中分別猜選一個；另外 題只好亂猜，則他這次測驗得分之期望值為19 20 分。
參考答案
答案：C
難度：簡單0.76244
統計：A(3),B(24),C(475),D(121),E(0)
內容推薦
- 四、閱讀測驗 10分Mostpeople have nightmares, and usually nightmares strike children moreoften than adults.
- 有一螺線管長50公分，均勻繞了1000匝線圈，中心磁場B1，若將螺管剪成兩段，剩下一半，若仍通入相同的電流，中心磁場為B2，則B1：B2為何？ (A)2：(B)1：(C)1：(D)
- 下列哪些可能是胺基酸的分子？(A) (B) (C) (D)
- 三、文意選填 10分An Earthship is a relatively new type of house that 46 little harm to the environment. It
- 【四】下圖為用聯合國糧食組織的資料所繪製的世界飢餓地圖。請仔細讀圖後，回答以下問題：【題組】下列何者是世界各地饑荒發生的主要原因？ (A)戰爭破壞農業環境 (B)自然環境條件欠佳 (C)政治制度
- Where am I? I saw thousands of people whose bodies were as 36 as mine.Now I remember. I was wheedlin
- 【題組】(A) took (B) have taken (C) was taking (D) had taken
- E.有一種遊戲，每次輸贏規則如下：先從 至 中選定一個號碼 n，再擲三顆公正的骰子。若三顆骰子的點數全都是 n，則可贏 元；恰有兩個點數為 n，則可贏 元；恰有一個點數為 n，則可贏
- For most of human history, people slept on cloth or leaves on the floor. The Pharaohs in ancient Egy
- 一、就歷史硏究成果而言，論者常謂：「中國長於史料，而西方則精於史論。」（50%)【題組】(一)試舉出三部中國重要史著，說明其內容大要、史料價値或特色。
內容推薦
- It was a relief to find my wallet. I thought I____ it.(A) lost (B) have lost (C) had lost (D) wil
- 【題組】Which of the following is NOT true?(A) Regular nightmares can affect a person’s health.(B) M
- He’s determined to go on the trip; he’ll even sell his car____ .(A) if he needed (B) if need be (
- 【題組】Based on the article, which of the following is not the cause of a nightmare?(A) Emotional t
- Who usually ____ in your house?(A) cook (B) cooking (C) does cooking (D) does the cooking
- I get up at six every morning, ____ my brother often sleeps till noon.(A) while (B) when (C) beca
- After getting out of the prison, Sam had a hard time ____ a good job.(A) find (B) to find (C) fi
- The doctor insisted that the patient____ an operation right away.(A) has (B) have (C) had (D) wil
- 【題組】(A) the only (B) one of (C) the most (D) more of
- II. Cloze ( 一題2分 ) 40%A. Spring Valley is a little town in southern Taiwan, 16 in the midst of a che
- The first Europeans came to Easter Island in 1722,____ three Dutch ships landed there on Easter S
- 【題組】(A) arise (B) aroused (C) have arisen (D) had arisen
- 【題組】(A) ate (B) have eaten (C) had eaten (D) was eating
- 【題組】(A) with (B) has (C) where (D) which
- Jane is the last person____ I would want to work with.(A) who (B) whom (C) that (D) whose
- 【題組】(A) suffer (B) to suffer (C) suffered (D) suffering
- 【題組】(A) in turn (B) by chance (C) by no means (D) rather than
- 【題組】(A) flew (B) flown (C) flowing (D) flowed
- This is the restaurant____ Ruth worked before she became a model.(A) when (B) where (C) which (D)
- B. In order to look perfect on the outside, I strove to lose weight, even though I had always been a
- 【題組】(A) struggle (B) struggling (C) to struggle (D) struggled
- 【題組】(A) with (B) had (C) where (D) which
- The few birds____ anywhere were dying.(A) seen (B) were seen (C) had seen (D) saw
- 【題組】(A) fed (B) dieted (C) eating (D) skipped
- 【題組】(A) from (B) with (C) by (D) for