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题型：填空题 题类：常考题 难易度：普通
仁爱科普版九年级上Unit4 Amazing Science Topic 1 When was it invented?同步练习
—Thanks for reminding me of it.
Salt {#blank#}1{#/blank#} {#blank#}2{#/blank#} in the southern factory by them.
— You're right. They make our city more and more beautiful.
— More chances _______ to students to learn from each other.
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