問題詳情
13.下列有關鑑別有機物的敘述，何者正確？
(A)烯類和炔類可用溴的四氯化碳溶液區分
(B)甲酸和甲醛可用多侖試劑區分
(C)乙醇和乙酸可用鹼金屬區分
(D)環己烯和苯可用溴的四氯化碳溶液區分。
(A)烯類和炔類可用溴的四氯化碳溶液區分
(B)甲酸和甲醛可用多侖試劑區分
(C)乙醇和乙酸可用鹼金屬區分
(D)環己烯和苯可用溴的四氯化碳溶液區分。
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- We are all ____ to the doctor who has devoted most of his life to helping the sick.(A) respectabl
- By next November, we _______ each other for 17 years. How time flies!(A) will know (B) have know
- Bill gets into trouble now and then, but ______ he is a good student(A) essentially (B) officiall
- 位於同一條染色體上的所有基因稱為聯鎖群，請問人類男性白血球細胞中共有幾條不同的聯鎖群？ (A) 46 (B)23 (C) 47 (D) 24(E) 45。
- IV. Cloze Test (1%X15=15%) Christopher Reeve, perhaps better known as “Superman,” showed his iro
- 成熟的神經細胞不再分裂，所以也不再複製其 DNA。小娟測量人類的神經細胞發現，細胞中 DNA 的含量為 X，接著她又測量下列五種不同人類細胞的 DNA 含量，請問哪些測量值可能發生錯誤？ (A
- All students deserve equal access to the educational resources, including those from them y grou
- 一、試回答下列有關動力不穩定的問題：【題組】⑴何謂慣性不穩定（inertial instability）？其條件為何？（5 分）
- 【題組】According to the article, which of the following is not an impact that Chien-Ming Wang’s gre
- A huge _____ of birdwatchers came to the marsh to admire the appearances of themigrant birds.(A)
內容推薦
- 【題組】(A) encouraging (B) infecting (C) encountering (D) interrupting
- III. Cloze (20%) 每題一個空格，請依文意選出一個最適當的選項，標示在答案卡A. Along the roads, wildflowers __26___ the traveler’s
- I can’t find my purse. I _____ it when I got off the bus.(A) must drop (B) must have dropped(C)
- Days of heavy rain _____ several landslides in the mountainous areas.(A) gave birth to (B) resul
- C. Farms have been getting bigger and bigger over time. These days, farms areusually huge areas of l
- 【題組】(A) which (B) when (C) what (D) where
- _____ rejected by the people around him, the little boy hid himself in his ownimaginary world.(A
- ______ the thick fog, the airport is closed.(A) Instead of (B) By means of (C) In spite of (D) O
- 附圖為一個分離 DNA 電泳槽裝置的俯視圖，根據核苷酸的組成分子特性（DNA 所帶的電荷），你認為應該先將 DNA放置在下列哪一點再通電流，便可將 DNA 分離？ (A)甲 (B)乙 (C)丙
- 【題組】(A) get rid of (B) come up with (C) tune in to (D) run out of
- 【題組】(A) rose (B) raised (C) rising (D) raising
- The company _____ a lot of money due to improper management last year.(A) believed to lose (B) i
- The thief tried to sneak out of the store, but he was caught _____ by the owner.(A) by no means
- 【題組】(A) to (B) with (C) on (D) at
- 【題組】(A) to pour (B) pouring (C) pour (D) poured
- Lots of people are searching for the key _____ instant success but they oftenignore the importan
- Complaint letters have been ______ to that company since the boss saidsomething inappropriate on
- V. Reading Comprehension (14%)請分別依各篇文章之文意選出最適當的選項A. Sitting between Lake Pontchartrain and the Missi
- 【題組】(A) aside from (B) in hopes of (C) thanks to (D) speaking of
- 【題組】(A) that (B) where (C) which (D) when
- Deserted for a long time, the village looked _____ no one had ever lived there.(A) as though (B)
- _______ her toothbrush and clothes, the mother prepared some books and toys forher daughter on t
- 【題組】Before Hurricane hit New Orleans, the system of levees worked fairly well forabout ________.
- 【題組】(A) manner (B) process (C) analysis (D) operation
- B. Global warming certainly has more negative effects than positive ones.However, it is true that th