It has been announced recently that all the schools________ not have the students attend school if the

students have high temperatures.[ ]

A. need  

B. shall  

C. could  

D. ought to

扁桃体手术的禁忌证有（）

A.关节痛

B.扁桃体萎缩

C.扁桃体窝口有干酪样分泌物

D.扁桃体周围脓肿

E.妇女经期或经前一周内