问题 单项选择题

关于甲状腺功能亢进的叙述,下列哪项是错误的()

A.继发甲亢是手术治疗适应证

B.青少年患者禁忌手术治疗

C.不准备手术治疗者,一律不应服用碘剂

D.手术中结扎、切断甲状腺上极血管时应远离甲状腺上极

E.甲状腺危象的发生多因术前准备不够所致

答案

参考答案:D

解析:继发甲亢是手术治疗指征之一。但青少年患者因尚处于生长发育过程中,手术会影响甲状腺功能,复发率亦高,所以不适宜手术治疗。在未准备手术治疗病人不应用碘剂做术前准备,因碘剂只能抑制甲状腺素的释放,而不能抑制其合成,因此一旦停服碘剂,贮存于甲状腺滤泡内的甲状腺球蛋白大量分解,而使甲亢症状重新出现。甲亢病人术前需做好各方面的充分准备,基础代谢率降至正常,手术才安全,否则有可能发生甲状腺危象。在手术中处理甲状腺上极血管时,一定要紧靠甲状腺上极处结扎切断,咽喉上神经(尤其外支)与甲状腺上动脉贴近同行,在近上极处才分别走行,越远离甲状腺上极切断结扎越容易将喉上神经损伤。

阅读理解

People say that a mother’s love knows no boundaries (边界). This is true when it comes to my mother. She has given up many things so that my sisters and I could live a better life.

My mother comes from a large family and her parents died when she was quite young. She dropped out of school when she was fifteen because no one could afford to pay her studies. At the age of 19, she married my father and when they had my sisters and I, they moved to the United States so that we could have a better life. My parents did not know English but somehow they communicated with other people. My mother stayed at home and raised us while my father was working. There were so many dangerous incidents that happened where we lived that my mother finally decided that we all moved to Texas when I was seven.

My mother has worked so hard to give us everything. She always tells us that all she wants is for us to be happy.

As the saying goes, “You don’t appreciate (意识到) something until it’s gone.” Well, I finally had a chance to experience it. My mother went to Mexico this winter because she needed to have an operation. It was the first time in my life that my mother was not there to hold and comfort me. Those two weeks when she was away made me realize how much I love her. All she has done for me is incredible (难以置信的). When I suffer she suffers with me. I have to show her how much I care about her. She means the world to me.

小题1:Which is the RIGHT order of the following events?

a. My mother married my father.

b. My mother went to Mexico to have an operation.

c. We all moved to Texas.

d. My mother dropped out of school.

e. They moved to the United States.

f. My mother’s parents died when she was young.

A.a, b, f, c, d, e

B.d, e, a, c, f, b

C.f, d, a, b, e, c

D.f, d, a, e, c, b小题2:What does the underlined word “it” refer to in the fourth paragraph?

A.My mother’s experience.

B.My mother’s care for me.

C.The meaning of the saying.

D.My mother’s love.小题3:The writer didn’t realize that he loves his mother very much until ______.

A.they moved to Texas

B.his mother told them all she wanted was for them to be happy

C.his mother left home for an operation

D.his mother died小题4:According to the passage, we can infer that the writer writes the passage in a(n) ______ mood.

A.affectionate (挚爱的)

B.humorous

C.serious

D.bitter

单项选择题