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- 1什么叫不对称碳原子?
- 2the forward,children,visiting,to,are,looking,pandas连词成句
- 3she can play the piano,too.改为同义句
- 4(x的2次方-4x)的2次方-8(4x-x)的平方+16 因式分解,拜托
- 5__________________?yes,I usually go to the library by bike __________________?I am going by bike
- 6设在半径为R的半球面上,均匀的分布着电荷q.求这个半球面的球心处的场强
- 7甲数与乙数的比是5：8,甲数比乙数少（ ）%,乙数比甲数多几分之几
- 8小鸭是小鸡的3倍个增加两只后小鸭是小鸡的两倍,问原来小鸡和小鸭各多少只?
- 9造句 赏心悦目
- 10A knife you have life这句话是什么意思