问题
单项选择题
不符合羊水栓塞的病理生理变化的选项是()
A.羊水有形成分阻塞肺小血管引起肺动脉高压
B.羊水内抗原成分引起Ⅰ型变态反应
C.发生急性左心衰竭
D.DIC
E.羊水栓塞的后期可导致肾损害
答案
参考答案:C
不符合羊水栓塞的病理生理变化的选项是()
A.羊水有形成分阻塞肺小血管引起肺动脉高压
B.羊水内抗原成分引起Ⅰ型变态反应
C.发生急性左心衰竭
D.DIC
E.羊水栓塞的后期可导致肾损害
参考答案:C
完形填空 阅读短文,从每题所给选项中选出可以填入空白处的最佳选项。(15分) I can’t remember when I started collecting litter. But it was when I got tired of ___1___ litter nearby and realized that no one else was going to pick it up. I live ___2___ a forest in Ohio, America. I can walk there ___3___ three minutes.I used to love going there to play with my dog. But one day there was ___4___ much litter there that I became very unhappy. I decided I had to clean up the forest. I wanted to __5__ happy going there again. I ___6___ my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes ____7_____ starting to pick up litter, my bag was full! It had cans, _____8___, broken glass and newspapers in it. From then on, I ___9____ to the forest four times a year to pick up litter. I’m often there for three hours. It makes me feel ____10____ to do something for the environment. After each trip, I look at all the litter that I’ve found. If _11___ of it is recyclable, I keep it. I __12___ understand why people drop litter. But I will keep picking it up __13___ they stop __14___it.I know I am only doing a small bit ___15_____ the Earth, but I still think it is important.
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