句子理解thismeansthatforthefirsttimedoctors'maybe
thismeansthatforthefirsttimedoctors'maybeabletotellifaninfectedpersonwhofeelswellis______becomingill,sothattheycantrytodosomethingtopreventthis.A.incaseofB.intermsofC.indangerofD.inchargeof希望得到详细说明