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40.題 感謝~

Word Count 213 After so many studies have been carried out, the interest in knowing more about what's going on in our brains never dies down, What interests scientists more is the animals' brains. Take birds' brains for example. Birds are in fact smarter than we thought. A story goes like this: A smart crow collects rocks and throws them into the bottle, and in the end he gets the water. Now, it is not just a story. Studies show that crows are great toolmakers and they are able to choose the tool that is of best use. As for parrots , the idea that they just pick up the sound without understanding the meaning is not true. Their language ability is surprising. Here comes a famous example. Alex was the gray parrot, whose owner was a scientist at Harvard University. He was trained to understand over 100 English words, with which he was able to make simple sentences. On the night he died, the last words he gave to his owner were "YOU BE GOOD SEE YOU TOMORROW I LOVE YOU.” No birds or other animals are going to take man's place as the smartest being on the planet. However, we might not be 100% correct in the understanding of brains - The bigger, the smarter. brain 6 scientist ** crow parrot , ability ) 38 Which is NOT said about crows in the reading? (A) They know where to find the most food. B. They are great at making tools. 10) They can use tools to get water. D. They are able to tell which tool is the most useful. 39. What do we know about Alex the gray parrot from the reading? (A) He lives at Harvard University with his owner. (B) He knew more English words than his owner. (C) He was able to show his feelings to his owner by words. (D) He could make more than 100 simple sentences. 40. What can we learn from the reading? YA) Having answered all the questions about man's brain, scientists have more interest in other animals'. YB It was commonly believed that animals with larger brains were smarter than those with smaller ones. © With long-time training, birds may become smarter than all the other animals except Ba man. (D) Knowledge about how smart birds can be may make more people want to keep one as a pet.

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自然科學 大學

大學普化 方智化學第六題

ow Na k 7 CI o se Br Chapter 2 化學鍵結 AH -C=CH 升二技插大 3. Brigma The bond between the carbon atoms in acetylene (HCCH) consists of ) (A)6 pi electrons (B)4 pi and 2 sigma electrons (C)6 sigma electrons (D)2 pi and 4 sigma electrons (E)3 pi and 3 sigma B) B 7.(BCDE) electrons. 【84 成大化學) 14.(B) 20.(C) 4. E ) (A)NO; [83 中興A] Which of the following has a triple bond? (B)O2 (C)C12 (D)CO; (E)CN-. Which one of the following element pairs has the lowest electronegativity (B) 27.(D) 34. (C) C) 41.(CD) 1 G difference and thereby is the least polan? Få 10 323.49 B) (84 5% *ILI) -) 48. (A) 6. NET 2 > 2 D) 58. (D) 62. (B) 69. NO+ D Obind (219) O 发 (A)SeF (B)Seci (QKBr (D/NaCl (E)KAT. 11 The compound Sio does not exist as a discrete molecule while CO2 does. This can be explained because ly 2 ep 3 15 aly zp (A)the Si–O bond is unstable (B)The Lewis structure of SiO has an even number of electrons (C)The SiO2 is a solid while CO, is a gas (D)the 3p orbital of the Si has little overlap with the 2p of the 0 (E)none of the these. V MOJT 515 1 - 4 40 (成大】 Yi (4 0 atom) (86 58*A] 7. In order to explain the valence observed for many of the elements 0 -Si-O in terms of electron configurations, it is often useful to look at electronis staies slightly different from the ground state in comparing 0-41-0 the ground state of boron with the state more useful to describe 0 bonding, the number of unpaired electrons goes from (A)1 to 2 (B)1 to 3 (C)3 to 4 (D)3 to 5 (E)none of the above. (集 (80 清大B) Which of the following compounds should not exist? ( (, 【85 成大A】 alf 566-32 Cle 32-8-24 2-89 cild 14 1 he atoms 83 中興A) mm bove. B 29 p. 1 1 be a ) \CHE > ? (A)Na,P (B)(NH4),PO, CIPO. DPH xH)POCI,, Maspal sput 中興A] Pa zorgt O 15412 = 1) O-P- 5 5+12= 1) 10-4 - 13 13-12=1 -- cl-P-0

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