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- 1一般将来时 正在进行时的各5个英语句子
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- 3两个直线垂直同一平面,这两条直线相互一定垂直吗?,举例
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- 6求有关于大熊星座的古诗~
- 7He is the right p_____ for the job.
- 8关于数字推理问题
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- 10-[（-2分之1·a²·b的4次方·c的4次方）²÷（4分之1·a·b³·c²）³]·（-8分之3·a³·b²）