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题型:语法填空(单句) 题类: 难易度:普通
人教版(2019)必修第二册Unit 4 History and Traditions 基础知识回顾练习
{#blank#}1{#/blank#} by an over 1600-year-old text about preparing qinghao extract with cold water, Tu{#blank#}2{#/blank#} the experiments and tried extracting the herb {#blank#}3{#/blank#} a low {#blank#}4{#/blank#} in order {#blank#}5{#/blank#} {#blank#}6{#/blank#} damage its {#blank#}7{#/blank#} part.
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