问题
判断题
海上求生过程中，求生的三个要素并非完全孤立存在的。（）
答案
参考答案：错
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海上求生过程中，求生的三个要素并非完全孤立存在的。（）
参考答案：错
| 任务型阅读。从方框中选择恰当的句子补全短文。 | |
| Did you sleep all day on March 21? 1 This is the day of the year when people around the world care about their sleep and ask themselves a lot of questions about sleep. Why do we need sleep? 2 However, tests have shown that a lack(缺乏) of sleep for over four weeks may cause a strong drop of body temperature, great weight loss, and finally sickness. 3 Eight hours a night is the average amount of sleep people need. Primary schoolstudents need to sleep for about ten hours. Junior high school students should sleep for about ninehours and senior high school students should sleep for about eight hours. 4 Thomas Edison said that sleep was a waste of time. He didn't sleep during the night. But he took naps (小睡;打盹) during the day. On the other hand, 5
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