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题型:翻译 题类:常考题 难易度:普通
山东省滨州市2019-2020学年高一下学期英语期末考试试卷
I find {#blank#}1{#/blank#} necessary to discuss the problem further.
They lived on the earth tens of millions of years ago, {#blank#}1{#/blank#} humans came into being and their future seemed secure at that time.
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