TPO8 问题一道！ 阅读！

daidarenUID: 2354215

Paragraph 3 Some scientists speculate that Mars may have enjoyed an extended early Period during which rivers, lakes, and perhaps even oceans adorned its surface. A 2003 Mars Global Surveyor image shows what mission specialists think may be a delta―a fan-shaped network of channels and sediments where a river once flowed into a larger body of water, in this case a lake filling a crater in the southern highlands. Other researchers go even further, suggesting that the data provide evidence for large open expenses of water on the early Martian surface. A computer-generated view of the Martian north polar region shows the extent of what may have been an ancient ocean covering much of the northern lowlands. The Hellas Basin, which measures some 3,000 kilometers across and has a floor that lies nearly 9 kilometers below the basin’s rim, is another candidate for an ancient Martian sea.

7. All of the following questions about geological features on Mars are answered in paragraph 3 EXCEPT:
○What are some regions of Mars that may have once been covered with an ocean?
○Where do mission scientists believe that the river forming the delta emptied?
○Approximately how many craters on Mars do mission scientists believe may once have been lakes filled with water?
○During what period of Mars’ history do some scientists think it may have had large bodies of water?


文中只说了在ancient。。难道这也算说明过是哪个历史时期了？？

daidarenUID: 2354215

木有人啊

estopUID: 2864494

红色对应的应该是 Some scientists speculate that Mars may have enjoyed an extended early Period during which rivers, lakes, and perhaps even oceans adorned its surface.

daidarenUID: 2354215

酱紫啊。。。。。。。。。。。。。。。。。。。。。。。。。