【题目】How much do w e know about Mars?Is ther e lif e on Mars? W e do not know. We're sur e that earthman cannot liv e on Mars. We ne e d oxygen(氧气) to breath. T her e is almost no orygen on Mars.Living on Mars woul d b e lik e living on a very high mounta...
kilometers from the sun.Jupiter(木星),Saturn(土星),Neptune(海王星) and Uranus(天王星) are all 16 than the earth, 17 Venus, Mars and Mercury are smaller than the earth.Animals, trees and humans can only 18on the earth-the other planets in our solar system do not19 air or water. Do...
I put my head out of a window and a bucket(桶) of water fell on me. It seems that “Look out” may mean “Don t look out.” Second Frenchman: I was once on a ship and heard the captain shout, “All hands o...
[03:33.04]The method makes the best use of resources [03:36.32]including water and nutrients. [03:40.00]The researchers said the tomato plants in intercropping [03:43.48]may have benefited from being close [03:45.84]to the...
Temperature on mars is cooler than what it might appear in those high-resolution pictures sent by curiosity. Weather station data aboard Mars Science Laboratory reveals that desert-like terrain of Gale crater which resembles barren lands of American southwest, is actually quite cold....
Try to guess if you are not sure of the answers.How much do you know about MARS?1 Mars is the a smallest planet in the solar system. a second b third c fourth2 The surface of Mars is covered in a. a rocks b water c grass3 The average recorded temperature on Mars is c.a40° ...
is 150million kilometres from the sun.Jupiter(木星),Saturn(土星),Neptune(海王星)and Uranus(天王星) are 6 than the earth, 7 Venus, Mars and Mercury are smaller than the earth.Animals, trees and humans can only 8on the earth-the other planets in the solar system do not 9 air or water....
The most enticing thing about Mars exploration is the promise of finding water— or past evidence of water. "Water is key because almost everywhere we find water on Earth we find life," NASA's web site points out. "If Mars once had liquid water, or still does today, it's compelling ...
F: Are you serious? 147 liters? M: Yeah. Most of the water is used to grow the plant. F: Wow, that’s a lot of water. 1. Although children have little or no money of their own, they certainly have the capacity to be “givers”. As children often need so much help — even ...
renewal is more or less fixed. It relies on natural processes that operate independently of how the resource is used – this is why water conservation is important. In many places, especially in arid climates, the renewal time scale for water resources can be much slower than in other places...