It is often more difficult to find trained men than ___for scientific research.
问题描述：
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
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