Humanshavemanyorgans(器官),butyoucanenjoylotsofthingsbecauseofyourears.Doyouknowhowtheearswork?Theearhasthreeparts:theouterear(外耳),themiddleearandtheinnerear(内耳).Theouterearisthepartyoucansee.Itcollectssoundsaroundyou.Thesoundsthentraveldowntothemiddleear,theinnerearandthentoyourbrain.Yourearsneverst...
8As a rule, Stewart’s books emphasize that you need not own land, reside in the deep woods or trek to remote wilderness locations to deepen your relationship with nature; indeed, many of the most compelling stories in The Tree Collectors are based in urban spaces, backyards, and other su...
Unstoppable Us, Volume 1: How Humans Took Over the World - Yuval Noah Harari 电子书mobi+epub - Reading age : 10 - 14 years - October 18, 2022 @忘却不纪念 NEW YORK TIMES BESTSELLER • From world-renowned historian and philosopher Yuval Noah Harari, the bestselling author of ...
W: I can't believe that duck hunting is still legal in so many parts of the world [8]. The scientific evidence from countries like Australia, Canada, and the USA clearly indicates a decline in the birds' numbers. M: But can anyone be sure if the decline is really caused by the hunt...
Some people say most of what we read on the Internet is inaccurate. To what extent do you agree or disagree? Some people think that robots are very important for humans' future development. Others, however, think that robots are a dangerous invention that could have negative effects on ...
tooth to try to protect it a little bit more. So it's really a protective mechanism more than anything else. If teeth didn't feel pain, we might 30 to use them in situations that damage them, and for humans, damaging 31 teeth is a problem because, unlike crocodiles, we can't 32 ...
17. How many levels of courses does the program offer? A. Seven. B. Eight. C. Twelve. 18. What is the strength of the program? A. It can meet personal needs. B. It is available throughout the year C. It provides courses on U.S. culture. 19. What can students get if they pe...
The organism causes gastrointestinal disease in humans when contaminated raw or undercooked fish is ingested. Larval forms penetrate the mucosa and burrow into the bowel wall where they elicit an intense inflammatory reaction that produces symptoms of abdominal pain, hemorrhage, obstruction, and sero...
Like other species, we are the products of millions of years of adaptation. Now we're taking matters into our own hands.
Humans act with purpose, but much is still unknown about how we become purposeful agents — that is, how we develop the ability to willfully make things happen. In a recent study to explore agency’s mysterious roots, we tried to catch infants (婴儿) in the act of discovering their own ...