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标题: 六级练习2013.07.19 [打印本页]

作者: Rebecca949    时间: 2013-7-22 10:08     标题: 六级练习2013.07.19

[audio]http://sound.yywz123.com/tingbbs/cet6/cet620130719.mp3[/audio]



After a year circling the moon with a diverse array of instruments, LRO has revealed detailed images far different from the ones Brown University geology professor Jim Head used when he worked in the Apollo program, _________________________________. Brown says the lunar maps back then were based on images with lower resolution and limited viewing angles, which meant that deciding where astronauts could land involved a fair amount of guesswork.
"But what we have here with the LOLA instrument is in fact the ability to create topographic maps that actually look like images. _________________________________which we've combined together to create these global topographic maps and they give us an even portrayal of the topography, _________________________________."






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作者: susan.sui    时间: 2013-7-22 14:05

which sent the first men to the moon
so we have over two and a half billion shots of visial data.
largely composed ** creaters over the whole surfaces of the moon
作者: jusc    时间: 2013-9-11 22:37

which sent the first men to the moon
作者: 伊梦青依    时间: 2014-5-14 20:01

which sent the first man to the moon




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