单项选择题
A．To celebrate their victory. B．To cheer up the hunters. C．To scare the wolves. D．To alert the deer.
A.additional B.affect C.aptly D.assimilate E.circulation F.closely G.consistent H.enthusiasm I.identify J.impact K.penalty L.reward M.simplifying N.suspending O.vulnerable
A．He distinguished himself in low temperature physics. B．He fell in love with Natasha Willoughby. C．He became a professor of Mathematics. D．He started to work on refrigeration.