NASA had built hardware and had plans for increasingly ambitious missions all the way up to Apollo 20, and there was talk of manned flyby missions to Mars and even Venus. But the political winds shifted as quickly as public interest faded. ...
aRecently, two American spaceships, Vikings 1 and 2, landed on Mars trying to discover whether that planet has any life on it. So far the signs of life on Mars has neither confirmed(确认) nor ruled out. Russians have discovered that the surface of Venus(金星) is so hot that it is ...
D.Some rocks can prove life exists on Venus.3. What can we know from the last paragraph? A.The surface temperature of Venus is high. B.It's very easy to confirm life on Venus. C.Venus might have liquid water now. D.Many icy moons go around Venus.4. In which section of a newspa...
Most Common Text: Click on the icon to return to www.berro.com and to enjoy and benefit the of and to a in that is was he for it with as his on be at by i this had not are but from or have an they which one you were all her she there would their we him been has when...