问题 单项选择题 A1/A2型题

患儿,1岁。出生时体重正常,3个月后皮肤和头发色泽变浅,时有抽搐,不会独站,不会喊"爸、妈"。有助于初步诊断的检查是()

A.尿三氯化铁试验

B.尿甲苯胺蓝试验

C.血镁测定

D.脑电图

E.血钙测定

答案

参考答案:A

解析:本病患儿生后3个月开始出现毛发色泽变浅、抽搐、站立不稳、智力发育落后等症状,应高度怀疑苯丙酮尿症,一般采用尿三氯化铁试验或2,4-二硝基苯肼试验对较大儿童进行初筛,所以本题选A。

阅读理解

阅读理解。

    Have you ever seen snow? Many people in the world have not. Some countries never have snow;

some have only a little on the tops of very high mountains. In the north of England, there is quite a lot

of snow every winter, but in the south of England, there is usually little.

    When a student from a warm country comes to England in autumn for the first time, he feels cold

at first. There are often dark clouds, grey sky and cold rain in England in autumn, and most students

from warm countries do not like this.

    But snow is different. Though it is cold, it is also beautiful. Perhaps, after several dark mornings,

the student wakes up one day, and there is a lot of light in his room. He thinks "Is it so late?" and jumps

out of bed. But no, it is not very late. He looks out of the window and there is the snow on the ground

and on the houses and everywhere. The light of his room comes from clean, beautiful snow.

1. In which part of England is there much snow in winter? [ ]

A. In the east.

B. In the north.

C. In the west.

D. In the south.

2. In the autumn of England, we can NOT often see ______. [ ]

A. grey sky

B. dark clouds

C. strong winds

D. cold rain

3. In England both snow and autumn rain are ______. [ ]

A. cold

B. clean

C. beautiful

D. heavy

4. Why does the student ask himself "Is it so late?" [ ]

A. Because he has some work to do.

B. Because it is bright in the room.

C. Because it is really late.

D. Because he usually gets up early.

5. Which of the following statements is true?[ ]

A. Every country in the world has snow in winter.

B. Foreign students like the weather in England.

C. It is often very warm in the autumn of England.

D. Many people in the world haven't seen snow.

选择题