Eta Carinae is now engaging in Astronomers are particularly interested in Eta Carinae because

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问题 Eta Carinae is now engaging in
Astronomers are particularly interested in Eta Carinae because

选项 A、it is in its final stage.
B、it is a supernova.
C、it exploded in 1987.
D、it is brighter than the Sun.

答案A

解析

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职称英语理工类C级

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