A business man on a fishing trip is probably someone who___ A.sells fish B.fishes for pleasure
题目
A business man on a fishing trip is probably someone who___ A.sells fish B.fishes for pleasure
C.nets fish D.earns his living as a fisherman
答案
选 B.fishes for pleasure钓鱼消遣；其他三个意义错误：
C.nets fish用网捕鱼
A.sells fish卖鱼
D.earns his living as a fisherman以打渔为生
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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