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According to the news, what has happened last autumn?
According to the news, what has happened last autumn?
admin
2013-07-19
21
问题
According to the news, what has happened last autumn?
Last October, a NASA rocket travelling at a speed of 9, 000 kilometers per hour smashed into a dark crater on the moon’s south pole.
Upon impact, the Centaur rocket kicked up a cloud of debris and elements from the moon’s surface, creating a so-called "ejecta-plume" that was monitored by NASA’s Lunar Reconnaissance Orbiter, or LRO.
Scientists analyzed the findings, and preliminary results from this mission, as well as others, suggested that there was some form of water on the moon. NASA lunar scientist Michael Wargo said those days that a wave of findings during the past year makes it certain.
"We’ve confirmed that there was indeed water ice in the ejecta-plume and at an abundance that was about 50 percent higher than our initial estimates."
That means that the impact site has more water than some deserts on Earth.
选项
A、a large quantity of frozen water existed on the moon
B、the water on the impact site was as much as in the desert
C、there was a lot of rocket remaining on the moon surface
D、a large area has been affected by the rocket
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/TOQK777K
0
专业英语四级
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