Câu hỏi:
13/03/2020 483Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.
Alzheimer's disease impairs a person's ability to recall memories, both distant and as recent as a few hours before. Although there is not yet a cure for the illness, there may be hope for a cure with a protein called nerve growth factor. The protein is produced by nerve cells in the same region of the brain where Alzheimer's occurs. Based on this relationship, scientists from the University of Lund in Sweden and the University of California at San Diego designed an experiment to test whether doses of nerve growth factor could reverse the effects of memory loss caused by Alzheimer's. Using a group of rats with impaired memory, the scientists gave half of the rats doses of nerve growth factor while giving the other half a blood protein as a placebo, thus creating a control group. At the end of the four-week test, the rats given the nerve growth factor performed equally to rats with normal memory abilities. While the experiments do not show that nerve growth factor can stop the general process of deterioration caused by Alzheimer's, they do show potential as a means to slowing the process significantly.
With what topic is this passage mainly concerned?
Đáp án chính xác
Câu hỏi trong đề:
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án !!
Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).
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Trả lời:
Giải bởi Vietjack
Đáp án C
Dựa vào câu chủ đề từng đoạn: 1 “Over the past 600 years, English has grown from a language of few speakers to become the dominant language of international communication.” Và (2): “Currently, about 80 percent of the information stored on computer systems worldwide is English.”
=> ý chính nói đế sự phát triển tiếng Anh như ngôn ngữ trên toàn cầu
Nhà sách VIETJACK:
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Câu 4:
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Câu 6:
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Câu 7:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
You need time to arrange a party. If not, it is better not to have one.
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