How long have humans been on Earth, according to the cosmic calendar? The Appearance of Humans on Earth: In the history of the Earth, humans have not really been around for a very long time. Primates first appeared on Earth around the same time as the dinosaur extinction, about ...
解析 【答案】How long【核心词汇/短语】on the earth:在地球上【翻译】人类在地球上已经存在了数百万年了。【解析】根据题干要求,划线部分是“for millions of years(数百万年)”,表示时间长度,因此应该由how long来提问。句子开头首字母大写,因此答案是“How long”。
百度试题 结果1 题目 2. Humans have lived on the earth for only 35 000years.(对划线部分提问)How long have humans lived on the earth? 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
The author comments on the important role of human beings in climate change.RuddimanWilliamF.Earth
Ahead of this weekend's New York City Marathon, filmmaker and long-distance runner Nicole Teeny shares the incredible story behind her new 30 for 30 podcast GIRL v. HORSE. The conversation encompasses the surprising history of humans facing animals in contests of endurance and her own personal ...
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Humans don't know exactly how the extinction (灭绝) of the dinosaurs on earth ___.A. came onB. came acrossC. came upD. came about 相关知识点: 试题来源: 解析 D 题目考察动词短语的辨析。需要选择与“恐龙灭绝如何发生”搭配的短语:- **A. came on**:表示“开始,来临”,通常用于自然现象或...
scientific research and intellectual inquiries alone. Last but not least, youngsters who are accustomed to being educated at school or college are more likely to keep studying as a life-long habit, which will have a substantially posit...
Phosphorus is essential for the formation of DNA and cell membranes (薄膜), as well as the formation of teeth and bones in humans, according to the website Phys.org. It has long been thought that meteorites (陨石) were responsible for delivering this element to Earth. However, life began...
–On a sunny day,hang things outside to dry! This saves energy that would have been used on the dryer. –If you can, trycycling, walking,or usingpublic transportto get out and about, rather than using the car. –Turn off any dripping taps, and make sure you don’t run them for ...