All the universities have duty to their students of the quick development of the scientific world.
A. make; known
B. have; understood
C. keep; informed
D. find; included
网友回答
A. make; known
B. have; understood
(答案→)C. keep; informed
D. find; included
解析：考查词组：keep sb informed of“及时告知某人某事”，句意是：所有的大学有责任及时通知学生科学领域最快的发展。选C。