单选题
Spectral reading of the light reflected by an Earth-like planet ______.
A、
can tell us the components of that planet's atmosphere
B、
can locate oceans and forests on that planet
C、
can show what the weather on that planet is like
D、
is the quickest way to study its light curve
【正确答案】
A
【答案解析】
第一段最后一句表明，通过Spectral reading可以测得行星的大气成分，选A。
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