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數學 高中

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高師大附中 108學年度第2學期第2次段考高中部一年級數學科試卷 班級: 座號: 姓名: 多選題(每題8分,答錯1個選項得5分,錯2個選項得2分,其餘不給分,共16分) 1. 有一種細菌,每隔一個小時死亡2隻,剩下的分別分裂成2隻,設原有5隻細菌, 令個小時後的細菌數量為a,且6. = "net-97,n為正整數。下列敘述何者正確? (2) b₂ = 8 (3)數列(a)為等差數列 (4)數列(b)為等比數列 (1) a₁ = 6 (5)a-b=4,n為正整數。 2. 某肥皂廠商推出一種新產品,在上市前以不同的單價X(單位:十元) 調查市場的需求量Y (單位:萬盒)。調查結果如表,下列敘述何者正確? X(十元) 8 9 10 11 12 ¥ (萬盒) 11 12 10 8 9 (1) X 的變異數為2 (2) X 和Y的相關係數為0.8 (3) Y對X的迴歸直線的斜率為0.8 (4) Y 對 X 的迴歸直線通過點(10,10) (5)若單價定為150元,預估市場的需求量有6萬盒。 二、填充題(配分如下表,全對才給分,共 66 分) 格數 1 2 3 4 5 8 9 10 11 12 6 7 38 得分 7 20 26 32 14 43 48 52 60 63 56 1. 有兩個等差數列(〉、〈br〉的前n項和的比為(2n+4):(n-1),則+3 bo+b₁4 2. 設數列(a)之首項a =1且a =a+6n²+1,n為自然數,則一般項a=. 3. 已知數列(a)的前n項和Sh=2a-2020,n為正整數,則前5項和S= 1 1 ++ 1 27-1 則n的最小值為 若|2-|<- 4. 設等比級數 S. =1+2+-+- , 248 1000 5. 某人欲參加郵局教育儲蓄存款,年利率6%,複利計算,若每年年初固定存入 10000 元, 則第 10 年年底期滿後,結算本利和有____元。(已知1.06 約1.7908) 6. 某地區統計其三年來的人口成長率分別為60%、20%、10%,則此地區這三年的 每年人口平均成長率為何?答: 7. 老師實施分組教學並對兩組同學進行測驗,兩組的分數如下: 第一組 30 人,平均分數 70 分,標準差5分; 第二組 20 人,平均分數60分,標準差 10 分。 若將這兩組學生成績合併,則 分(用根式表示)。 分。(2)新的標準差為 (1)新的算術平均數為 253 13 66

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英文 國中

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第19章 其他重要句型文法 *0. 2 you relax. (A) 3 up, Kim. you are. 選擇題 1. I just found out yesterday (I weigh 80 kilos) I've gained two kilos in a month. (A) that (B) which 四 gain 增加 (C) what (D if smoking helps you relax might be true, but there are some better ways to help 四 relax 放輕鬆 (A) It (B) Whether (C) That (D) X up early, or you will miss your first class. (A) Getting (B) Get (C) To get (D) Gets +(B) 4 there any fruit left in the refrigerator? (A) Is (B) Are (C) Have D) Will (B) @ I've heard some people have gotten cancer from smoking. 四 cancer 癌症 • (A) of (B) that (C) about (D) to *(13) 6. (A) Not to stand (B) Don't stand (C) Standing D Doesn't stand *(0) 7. Please the door. It's cold outside, and the wind is so strong. (A) do not open (B) not open (C) don't open (D) doesn't open *(0) 8. Kim: It there any pen-of mine on your desk? Ben: Yes, is one. Here (A) it (B) this C) that (D) there *0) 9. There only some water in the bottle. It's not enough for every one of us. (A) have (B) has (C) is (D) are (s) 10. There are millions of people the exciting game at a time. (A) watch B) to watch (C) watched D) watching ( 11 is said that Peter's father died two weeks ago. (A) It KB) This (C) That *(B) 12 It is a sad thing, (A) to Mr. Brown has been dead for two years (B) that Mr. Brown didn't live long enough to see his dreams come true (C) of me to hear the bad news (D) of Tom has made up his mind to leave here on time when you have a date with friends. (C) Do (D) Must (A) Will be (B) Always be (U) 14. It's convenient everyone can use the computer to do all the work. (D) X (C) that (A) for (B) to tomorrow or not. (B) 15. I am not sure whether Tom (C) came (D) coming (A) comes (B) will come b) They () 13

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