在考研英语二的阅读理解部分，考生需从四个选项中选出最佳答案。以下是对几篇阅读理解的答案汇总：
1. 文章标题：The Importance of Sleep
答案：D. It is crucial for physical and mental health.
2. 文章标题：The Benefits of Exercise
答案：C. It can improve cognitive function and reduce stress.
3. 文章标题：Global Warming and Its Effects
答案：B. It leads to extreme weather conditions and rising sea levels.
4. 文章标题：The Impact of Social Media on Young People
答案：A. It can negatively affect mental health and social skills.
5. 文章标题：The History of Ancient Egypt
答案：E. The construction of the pyramids was a testament to the advanced engineering skills of the ancient Egyptians.
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