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If giant x-ray flares churn circumstellar disks enough to keep newborn planets, such as Earth once was, from spiraling into thei
If giant x-ray flares churn circumstellar disks enough to keep newborn planets, such as Earth once was, from spiraling into thei
admin
2022-10-11
31
问题
If giant x-ray flares churn circumstellar disks enough to keep newborn planets, such as Earth once was, from spiraling into their suns, it would be an ironic twist on our conception of x-ray flares as________.
A. dangerous
B. predictable
C. ancient
D. ephemeral
E. perilous
F. foreseeable
选项
答案
A,E
解析
逻辑连接词是ironic twist,表示前后语义相反。前面说巨型X射线耀斑能够足够剧烈地搅动circumstellar disks(星周盘),从而防止新生的行星spiraling into their Sans(掉落到恒星中)。掉落到恒星里对于行星而言就消亡了,那么防止这个过程发生对行星是件好事。后面说认为X射线耀斑________是ironic twist(具有讽刺意味的转变)。因此空格是对前文“X射线耀斑对行星有益”这件事取反,即表达“没有好处”的意思。A项dangerous和E项perilous(危险的)符合。
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