she____ the national team at the age of13. A. joined B. joined in C.took part in C.attended
题目
she____ the national team at the age of13. A. joined B. joined in C.took part in C.attended
我书上的答案是C我也选A
答案
she____ the national team at the age of13. A. joined B. joined in C.took part in C.attended选A翻译她在13岁时加入了国家队A 是加入组织,国家队也算是一种组织B 加入某人的活动egWill you join in us?C参加活动...
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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．
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