英语 单选light travels very fast,_____ 300,000 kilometers a seco
英语 单选
light travels very fast,_____ 300,000 kilometers a second.
at in to about
the patient grew _____ every day.
weak weakly weaker more weakly
there's one boy there,and 5 minutes later i saw ___.
the other some other another other student
light travels very fast,_____ 300,000 kilometers a second.
at in to about
the patient grew _____ every day.
weak weakly weaker more weakly
there's one boy there,and 5 minutes later i saw ___.
the other some other another other student
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light travels 是什么意思?光年的英语单词是什么?
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