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最佳答案：Listening the instruction of the teachers, I have made a rapid progress in Engli
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最佳答案：正是通过丝绸之路,中国的造纸,火药,指南针,印刷术四大发明才被引介到世界各地.It is through the Silk Road,Chinese paper
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最佳答案：everyone has his own dream,but he always meets many setbacks and difficulties,ev
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最佳答案：the earth itself is a huge magnet,its both poles 【n & s】is located on both ends,
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最佳答案：Design and planning is a time consuming process, which includes the selection of