It is often more difficult to find trained men than ___for scientific research.
题目
It is often more difficult to find trained men than ___for scientific research.
A、getting financial support
B、to get financial support
C、get financial support
D、in getting financial support
答案
B,than前后的与difficult的搭配格式一致,前面是to find trained men后面也应该是不定式
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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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