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B: dotted C: joined D: scarred 正确答案：
(单选题) 34: In some areas China is（ ）the developed countries, but it will take some years before we can catch up with them. A: growing into B: whipping up C: gaining on D: heading for 正确答案：
(单选题) 35: To protect the environment, scientists and engineers are researching ways to （ ）electricity more cheaply from such renewable energy as the wind and sun. A: generate B: manufacture C: construct D: transform 正确答案：
(单选题) 36: As the semester is drawing to an end, the student union is calling on all the students to （ ）the temptation to cheat on exams. A: refuse B: reject C: resist D: resolve 正确答案：
(单选题) 37: Wireless waste from cell phones, pocket PCs, and music players （ ） special problems because they have toxic chemicals in batteries and other components. A: expose B: commit C: pose
D: transport 正确答案：
(单选题) 38: The reason I plan to go is ____________if I don't. A: because she will be unhappy B: that she will be unhappy C: what she will be unhappy D: for she will be unhappy 正确答案：
(单选题) 39: A computer file is a collection of ( ) data, used to organize the storage and processing of data by computer. A: electrical B: artificial C: electronic D: genuine 正确答案：
(单选题) 40: The meeting was successful and ended with a(n) （ ） to step up cooperation between the six states of the region. A: testimony B: pledge C: evolution D: signature 正确答案：
(单选题) 41: It seems these creatures can （ ）temperatures which would kill other species.
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A: tolerate B: compromise C: mock D: undergo 正确答案：
(单选题) 42: As people's living standards improve, the health and beauty business is （ ）with more sophisticated products than ever before. A: astonishing B: flourishing C: exaggerating D: diminishing 正确答案：
(单选题) 43: The problem of poverty is particularly （ ） in rural areas where one in three adults is unemployed. A: offensive B: significant C: acute D: frail 正确答案：
(单选题) 44: We don't doubt ____________ he can make a good job of it. A: if B: that C: what D: why 正确答案：
(单选题) 45: The chances of the disease being （ ）to humans are extremely remote. A: exposed B: commuted C: migrated D: transferred 正确答案：
(单选题) 46: After a very busy schedule in the past two months, Kenneth plans to take things （ ）for a while. A: at ease B: easily C: easy
D: with ease 正确答案：
(单选题) 47: — Congratulations! You won the first prize in today's speech contest. — __________________.
A: Yes, I beat the others.
B: No, no, I didn't do it well. C: Thank you.
D: It's a pleasure 正确答案：
(单选题) 48: ____________you don't like him is none of my business. A: What B: Who C: That D: Whether 正确答案：
(单选题) 49: Space exploration has been made ( )with the development of modern science and technology.
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A: it possible B: it was possible C: that possible D: possible 正确答案：
(单选题) 50: ____________he works hard, I don't mind when he finishes the experiment. A: As soon as B: As well as C: So far as D: So long as 正确答案： (单选题) 1: The exhibition at the Shanghai Science and Technology Center （ ）such endangered animals as the giant panda and the Siberian tiger and describes the work being done to protect them. A: detects B: exploits C: features D: demonstrates 正确答案：
(单选题) 2: Color-blind people often find it difficult to ( )from blue and green. A: separate B: compare C: contrast D: distinguish 正确答案：
(单选题) 3: — How do you do? Glad to meet you.— __________________. A: Fine. How are you?
B: How do you do? Glad to meet you, too. C: How are you? Thank you! D: Nice. How are you? 正确答案：
(单选题) 4: With the shining water before you and the wind ( ), trees behind you, you can not help ( ).
A: blow...but feel relaxed B: blowing... feeling relaxed C: blown...but feel relaxing D: blowing... but feel relaxing 正确答案：
(单选题) 5: The changes our city （ ）in the past few years are little short of miraculous. A: catalogued B: underwent C: inherited D: furnished 正确答案：
(单选题) 6: We must do well____________the boss assigns us to do. A: that B: whatever C: whichever D: those