They got out the chessboard and arranged the pieces.他们拿出棋盘把棋子摆好.The soil was squared off like a gigantic chessboard.土地象大棋盘一样被分成方块.He turned back to the chessboard and picked up the white knight again.他又回到棋盘上,拣起白色的相....
They got out the chessboard and arranged the pieces.他们拿出棋盘把棋子摆好.He turned back to the chessboard and picked up the white knight again.他又回到棋盘上,拣起白色的相.The soil was squared off like a gigantic chessboard.土地象大棋盘一样被分成方块....a ...
Our bodies derive an abundance of hematin from food.人体从食物中取得大量的正铁血红素.Conclusion: Purified SOD, hematin and nourishing peptone were successfully extracted and prepared from hog blood.结论: 从猪血中成功制备了产率与纯度较高的SOD 、 红素以及营养价值较高的...