
患儿,6岁,进食时,突然出现喘憋,呼吸困难,哭闹,烦躁不安,口唇发绀,查体见吸气时胸骨上窝、锁骨上窝明显下陷。应考虑为( )。
A.自发性气胸 B.急性喉炎 C.癫痫发作 D.食物中毒 E.气道异物


A.自发性气胸 B.急性喉炎 C.癫痫发作 D.食物中毒 E.气道异物
Summary Cloze (Try NOT to refer to the text)
Fill in the blank in the following summary of the Reading text with a word given in the box.
Strengths predict traditional interviewee challenges performance
A behavioral interview is based on discovering how the (1)____acted in specific employment-related situations. The logic is that how you behaved in the past will (2)____ how you will behave in the future, i.e. past (3)___ predicts future performance.However,in a (4)___ interview ,you will be asked a series of questions, which typically have straight forward answers, like "What are your (5)___ and weaknesses?"or "What major (6)___ and problems did you face?How did you handle them?"or "Describe a typical work week."
如果在单纯形表中,所有的检验数都为正,则对应的基本可行解就是最优解.( )