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风信子代表什么含义?
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英语,应该除了用should be supposed to ought to 还
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My father isn't in.He____to Beijing on business last week.
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施恩者,如题···
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怎样使脚暖和?
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用英语解释下列句子!Liz bought the house for 2,000,000yuan 和There is a
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you are idiot ,what do you think who you are?you are foolish
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凸透镜对光线有______作用，所以又称为______透镜；凹透镜对光线有______作用，所以又称为______透镜．
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Sometimes lightening hit a tree and s-------- a fire.At firs
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已知,如图,三角形ABC中,AB=10,BC=9,AC=17.求BC边上的高
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第二次工业革命的显著特征
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combined with & combining with 有什么区别?离问题结束还有 4 天 1 小时 提问s
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Latex公式编辑求解
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唯一的听众 续写
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如图,在△ABC中,∠ABC,∠ACB的角平分线交于点O.若∠A=60°,求∠BOC的度数;若∠A＝α,则∠BOC的度数
