下图为某家族白化病(皮肤中无黑色素)的遗传系谱,请据图回答(相关的遗传基因用A、a表

题型:填空题 案例分析题

问题:

下图为某家族白化病(皮肤中无黑色素)的遗传系谱,请据图回答(相关的遗传基因用A、a表示)

Ⅱ3的可能基因型是(),她是杂合体的机率是()

考点:高中生物人类遗传病人类遗传病题库
题型:填空题 案例分析题

病历摘要:患者女性,28岁。因双耳渐进性听力下降、耳鸣,时有耳内发堵8年。在当地医院诊断为分泌性中耳炎,给予波氏球打气,每天行鼓膜按摩及滴鼻剂治疗未好转,行左鼓膜穿刺,未抽出液体。患者来我院就诊,耳镜检查见鼓膜完整,稍内陷,查纯音测听:右耳传导性聋,左耳混合型聋,声阻抗:右耳A型,左耳As型,盖莱试验右耳(+),左耳(-)。

不属于耳硬化症手术治疗的术式包括提示:该患者确诊为耳硬化症()

A.镫骨切除术

B.外半规管开窗术

C.镫骨撼动术

D.内淋巴引流术

E.迷路切除术

F.镫骨足板钻孔活塞术

G.镫骨足板破碎术

H.前庭神经切除术

题型:填空题 案例分析题

阅读理解。

    Today, roller skating (滑冰) is easy and fun. But a long time ago, it wasn't easy at all. Before 1750, the

idea of skating didn't exist. That changed because of a man named Joseph Merlin. Merlin's work was making

musical instruments. In his spare time he liked to play the violin. Joseph Merlin was a man of ideas and dreams.

People called him a dreamer.

    One day Merlin received an invitation to attend a fancy dress ball. He was very pleased and a little excited.

As the day of the party came near, Merlin began to think how to make a grand entrance at the party. He had

an idea. He thought he would get a lot of attention if he could skate into the room. 

    Merlin tried different ways to make himself roll. Finally, he decided to put two wheels under each shoe.

These were the first roller skates. Merlin was very proud of his invention and dreamed of arriving at the party

on wheels while playing the violin.

    On the night of the party Merlin rolled into the room playing his violin. Everyone was astonished to see him.

There was just one problem. Merlin had no way to stop his roller skates. He rolled on and on. Suddenly, he

ran into a huge mirror that was hanging on the wall. Down fell the mirror, breaking to pieces. Nobody forgot

Merlin's grand entrance for a long time!

1. The text is mainly about _____. [ ]

A. a strange man  

B. an unusual party

C. how roller skating began

D. how people enjoyed themselves in the 18th century

2. People thought Merlin was a dreamer because he _____. [ ]

A. often gave others surprises    

B. was a gifted musician

C. invented the roller skates     

D. was full of imagination

3. Merlin put wheels under his shoes in order to _____.[ ]

A. impress the party guests     

B. arrive at the party sooner

C. test his invention         

D. show his skill in walking on wheels

4. What is the main point the writer is trying to make in the last paragraph? [ ]

A. The roller skates needed further improvement.

B. The party guests considered Merlin as a fool.

C. Merlin succeeded beyond expectation (预期).

D. Merlin got himself into trouble.

题型:填空题 案例分析题

患者男性,40岁,右颈部包块逐渐增大2年,近来感呼吸,吞咽困难,行颈部包块切除术。

与本病发生相关的因素不包括()

A.缺碘

B.致甲状腺肿因子

C.高碘

D.遗传因素

E.自身免疫性疾病

题型:填空题 案例分析题

男性,2岁。双侧先天性髋关节脱位。最佳的治疗方案是()

A.手术切开复位

B.牵拉复位

C.髋臼成形术

D.手法复位+蛙式石膏固定

E.连衣袜套

题型:填空题 案例分析题

产后下列哪些结构超声不易显示()

A.子宫体

B.子宫内膜

C. * *

D.卵巢

E.子宫颈

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