题目内容:
WhichofthefollowingstatementsaboutEtaCarinaeisNOTtrue?
A.Itwillendupasasupernov B.Itcanbeseenonlythroughbinocular
C.Itistheonlystarthatsendsoutanultravioletlase
D.ItsultravioletlaserisbrighterthanthatoftheSu
参考答案:
答案解析: