A.the endless TV programmes in the evenings and the Internet
B.the pressures of the day
C.the sufficient energy modern people usually have
D.loud noises in modern cities
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单选题 | What is the main topic of the passage? | 查看答案 |
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单选题 | The major cause of sleepdeficit of modern people is ________. | 查看答案 |
单选题 | What does the word “subjects” in Paragraph 4 mean? | 查看答案 |
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单选题 | People in the 18th and 19th centuries slept about 9.5 hours a night because ________. | 查看答案 |