血液在循环系统中不发生凝固的原因
参考答案:
血液流速快,流量大,即使某处有少量血栓形成,很快就会被清除掉;机体内存在由抗凝物质组成的抗凝系统,能将凝血块清除。
急腹症诊断不明时,哪项处理不对
A.病情观察
B.禁食
C.休息
D.止痛(吗啡)
E.输液
根据句意,用所给单词的正确形式填空。(10分)
小题1:Jane prefers _______ (cycle).
小题2:Running can help you keep _______ (health).
小题3:Don’t speak to me like this. I didn’t feel like ___________ (lose) the goal.
小题4:She spends half an hour _____________ (play ) basketball every day.
小题5:Bill is happy because he is the _________ ( win ) of the game.
小题6:There are some ___________(sandwich) on the table .
小题7:Li Ping smokes (two) a day, before and after dinner.
小题8:They (play) basketball with us tomorrow.
小题9:Eating more vegetables and _________ ( little ) meat is good for our health.
小题10:It's difficult for us (study) English well.