What does the man warn the woman not to do

单项选择题According to the author,______ is the most important function of institutions of higher education.

单项选择题What does the author think about trying to find weaknesses in other people’s research

单项选择题Which player did Michael Chang defeat in the 3rd set ______.

单项选择题The U.S. Space Agency NASA says ______ orbiting Mir space station has lost its primary and backup oxygen sources.

单项选择题What will the woman probably do if she is the dummy