The importance of biodiversity lies in ___. A. only providing food for humans B. maintaining the stability of the ecosystem C. causing environmental pollution D. decreasing the number of plants 相关知识点: 试题来源: 解析 B。生物多样性的重要性在于维持生态系统的稳定。A 选项错误,生物多样性的作...
A. damaging the ecosystem B. preserving biodiversity C. reducing air quality D. wasting natural resources 相关知识点: 试题来源: 解析 B。植物保护的重要性在于保护生物多样性。A 选项,植物保护是为了不破坏生态系统。C 选项,植物保护能提高空气质量而不是降低。D 选项,植物保护是为了不浪费自然资源。反馈...
The importance of animal protection lies in maintaining the balance of the ecosystem. Animals play a crucial role in the ecosystem. They are an important part of ___. A. nature B. natural C. naturally D. natures 相关知识点: 试题来源...
are part of the ecosystem C. can be sold for a good price D. are good for E. ntertainment 相关知识点: 试题来源: 解析 B。解析:保护野生动物的重要性在于它们是生态系统的一部分。选项A提到用于科学实验,这不是保护它们的主要意义。选项C将野生动物用于售卖是非法和违背保护原则的。选项D把动物用于...
In this context, businesses play a central role as the main actors, while the government’s responsibility lies in building platforms, establishing mechanisms, and providing policy guidance. China’s key role in BRI cooperation stems from its economic size, market scale, experience in infrastructure...
A. damage the ecosystem B. improve human health C. reduce animal numbers D. destroy natural resources 相关知识点: 试题来源: 解析 B。植物保护的重要性在于它能改善人类健康。植物可以提供新鲜空气、食物等,对人类健康有益。A 选项破坏生态系统错误;C 选项减少动物数量不是植物保护的主要作用;D 选项破坏...
G.Thisway,you?rerecordingtheimportanceoftheteacher?ssayingandnotjustrawfacts. 1. 2. 3. 4. 5. 高中英语 选择性必修 第二册 第21页 21 分钟能力强化组合练(六) 一、阅读理解 阅读下列短文,从每题所给的 A、B、C、D四个选项中选出最佳选项。 A 语篇类型:说明文 主题语境:人与社会 词数:256 难度...
The original sky clear, fresh air, people living in the flowers on the earth. The original river was crystal clear, small fish playing in the water. The original flowers in full bloom, tree-lined, grass out of the head, the earth a life. ...
A. The importance of sleep lies in dreams. B. The absence of dreams is terrible for us. C. Dreaming patterns are more important than we realize. D. Dreaming has mystical power of strengthening memories. 【答案】12. D13. C14. A15. B 【解析】 【导语】本文是一篇说明文。介绍了做梦和睡眠...
turning pressure into motivation and crises into opportunities. unilateral action or blind belief in the use of force cannot address the complex international security threats. the only solution lies in cooperative and common security. it is ...