—What should I do if  I failed the exam?

—If I_____ you, I _____ study harder next term. [ ]

A. am; will

B. were; would

C. am; would

D. were; will

用筷子或木棒置于两侧双尖牙部位，加力上提上颌骨是以下哪种情况的解决方法（）。

A.因舌后坠引起窒息

B.因上颌骨骨折下垂移位而窒息者

C.因血块或分泌物阻塞咽喉部时

D.咽部肿胀压迫呼吸道时

E.咽部肿胀压迫呼吸道时，插管无效