问题 单项选择题 A1型题

营养性维生素D缺乏性佝偻病,早期诊断的可靠指标是()

A.多汗、烦躁、夜惊

B.方颅、肋骨串珠等骨骼畸形

C.钙磷乘积<30

D.干骺端临时钙化带消失

E.血清25-(OH)D3水平降低

答案

参考答案:E

解析:维生素D缺乏性佝偻病诊断:有维生素D缺乏的病因,症状和体征,结合血生化改变和骨X线改变可做出正确诊断。但应注意早期病儿骨骼改变不明显,多汗、夜惊、烦躁等神经精神症状又无特异性,需结合患儿年龄、季节、病史做出综合判断。血清25-(OH)D3(正常10~80ug/L)和1,25-(OH)2D3(正常0.03~0.06ug/L)水平在佝偻病初期就已明显降低,为可靠的早期诊断指标。 【考点】:营养性维生素D缺乏

阅读理解

第三部分 阅读理解(共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

Christopher Thomas, 27, was a writer by night and a teacher by day when he noticed he was always tired and was losing weight fast. Diagnosed with diabetes(糖尿病), Thomas would need to inject himself with insulin(胰岛素) three times a day for the rest of his life or risk nerve damage, blindness, and even death. And if that weren't bad enough, he had no health insurance.

After a month of feeling upset, Thomas decided he'd better find a way to fight back. He left Canton, Michigan for New York, got a job waiting tables, nicknamed himself the Diabetic Rockstar , and created diabeticrockstar.com, a free online community for diabetics and their loved ones—a place where over 1,100 people share personal stories, information, and resources.

Jason Swencki’s son, Kody, was diagnosed with type diabetes at six. Father and son visit the online children's forums(论坛) together most evenings. "Kody gets so excited, writing to kids from all over," says Swencki, one of the site's volunteers. "They know what he's going through, so he doesn't feel alone."

Kody is anything but alone: Diabetes is now the seventh leading cause of death in the United States, with 24 million diagnosed cases. And more people are being diagnosed at younger ages.

These days, Thomas's main focus is his charity(慈善机构), Fight It, which provides medicines and supplies to people—225 to date—who can't afford a diabetic's huge expenses. Fight-it.org has raised about $23,000—in products and in cash. In May, Thomas will hold the first annual Diabetic Rockstar Festival in the Caribbean.

Even with a staff of 22 volunteers, Thomas often devotes up to 50 hours a week to his cause, while still doing his full-time job waiting tables. "Of the diabetes charities out there, most are putting money into finding a cure," says Bentley Gubar,  one of Rockstar's original members. "But Christopher is the only person I know saying people need help now."

1. Which of the following is true of Christopher Thomas?

A. He needs to go to the doctor every day.

B. He studies the leading cause of diabetes

C. He has a positive attitude to this disease.

D. He encourages diabetics by writing articles.

2. Diabeitcrockstar.com was created for _________.

A. diabetics to communicate          B. volunteers to find jobs

C. children to amuse themselves       D. rock stars to share resources.

3. According to the text, Kody ______.

A. feel lonely because of his illness

B. benefits from diabeticrockstar.com

C. helps create the online kid’s forums

D. writes children’s stories online

4. What can we learn about Fight It?

A. It helps the diabetics in financial difficulties.

B. It organizes parties for volunteer once a year.

C. It offers less expensive medicine to diabetics.

D. It owns a well-known medical website.

5. The last paragraph suggests that Thomas ______.

A. works full-time in a diabetes charity      B. employs 22 people for his website

C. helps diabetics in his own way           D. ties to find a cure for diabetes

单项选择题