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题型：单选题 题类：常考题 难易度：普通
人教版（PEP）小学英语三年级下册Unit 6 How many? Part B & C Let's learn & Let's chant课后作业
—No, it _____.
—It is {#blank#}1{#/blank#} (ruler/a ruler).
Now，she{#blank#}2{#/blank#} with electricity(电).
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