问题 问答题 简答题

简述AIDS病程三个阶段的改变。

答案

参考答案:

①淋巴结的变化:早期,淋巴结肿大,镜下淋巴小结明显增生,生发中心活跃,髓质内出现较多细胞。晚期呈现一片荒芜的景象,淋巴细胞消失殆尽,仅少量巨噬细胞和浆细胞残留②继发性感染:多发性机会性感染是本病一大特点。70%~80%有卡氏肺孢子虫感染,对本病的诊断具有一定的参考价值;70%患者有中枢神经系统的感染③恶性肿瘤:Kaposi肉瘤最常见,其次是淋巴瘤。

阅读理解

Word travelled quickly in the small fishing village of Port Washington, Wisconsin. So when McCarty wanted to build a playground for kids with special needs. 2,800 people − a third of the town − rolled up their sleeves(衣袖)and helped her.

"A lot of learning comes through play," said McCarty, 52, a special education teacher for 28 years. But her students were too often left out. She'd seen the traditional playgrounds stop wheelchairs dead in their tracks.

On September 16, 2008, the first day of the project, they came. Two women heard about the project on the way to work and took the day off to help. A couple in their 80s took part in the job. Children came and gave a helpful hand. Many were volunteers. They all worked very hard.

Today, Possibility Playground is one of the most popular destinations in Ozaukee County. All children can play shoulder to shoulder. There is special equipment(装置) in different parts. Here, you see all the kids on the same playground having fun.

"People used to ask. 'Why do you want to build a playground just for children with disabilities?' " McCarty said. "They didn't get it. It's only when you build a playground for children with disabilities that you build one for all children."

小题1:What's McCarty?

A.A special doctor.

B.A special education teacher.

C.A special singer

D.A special designer.小题2:How many people are there in the town?

A.About 4,200 people.

B.About 700 people.

C.About 8,400 people.

D.About 2,800 people.小题3:What does the underlined word mean?

A.目的地

B.出发地

C.游乐场

D.体育场

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