According to Ms. Washburn, for most universities, patenting their innovations______.
A．has proved to be cost-ineffective
B．has strengthened their competitiveness
C．has benefited their academic research
D．has relieved their financial difficulties

A.
A．has
B.has
C.has
D.has

【参考答案】

A
解析：本题考查文中人物观点。