题目内容:
Whensomeonehasflu-likeillness,whywillaswabbetakeninthenoseandsenttothelab?
A.Tofindmoreinfectionsthanundernormalcircumstances. B.Toexamineifitisinfluenzaorswineflu.
C.Toseeiftheillnessisserious.
D.Tostoptheillnessspreadtootherareas.
参考答案:
答案解析: