用be made of be made from be made by be made in 造句子
题目
用be made of be made from be made by be made in 造句子
答案
be made of:The table is made of wood.桌子是由木头制成的.be made from :Paper is made from wood.纸是由木头制成的.be made by:The model car was made by him.这个模型汽车被他买了.be made in：This watch is m...
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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