—Where's my watch? I can't find it anywhere.            

—It _     _ in your bag or under these books.              [ ]

A. might be              

B. must be            

C. mustn't be

肾综合征出血热的"三大"主征（）

A.出血，休克，肾损害

B.发热，休克，少尿

C.发热，出血，肾损害

D.发热，出血，"三痛"

E.休克，少尿，"三痛"