问题 单项选择题

严重贫血患者。牙龈龈色一般是()

A.粉红

B.暗红

C.鲜红

D.紫红

E.发白

答案

参考答案:E

解析:牙龈颜色可以反映牙龈疾病,也可以反映全身疾病,发生病变时可以发生变色,健康的牙龈是粉红色,但是发生急性炎症时,因为血管充血,组织肿胀,表现为鲜红色,所以84题选C。严重贫血患者因为血红蛋白低,表现为皮肤黏膜苍白,牙龈颜色发白,所以85题选E。考点:牙龈颜色

阅读理解

阅读理解。

     Many large cities in the United States have an area called Chinatown. Each of them was set up by people

who came from China. For example, Chinatown in San Francisco, California, began in the 1840s. The Chinese

immigrants (移民) came to America to look for gold. Then the area they lived in later became known as

Chinatown.

     Chinatowns were also setup in cities in the western states of Oregon and Washington during the middle of

the 19th century. Many Chinese immigrants in these areas helped build the first railroad system across the

United States. However, after the work ended in 1869, many Chinese moved to the eastern and middle parts of

the United States.

     Chinatowns can also be found in cities outside the United States. For example, the first Chinese immigrants

in London arrived in the late 18th century. They were men who worked for the East India Company. Later, the

Chinese immigrants opened small stores and restaurants there.

     Today, many people visit Chinatowns. They have special Chinese gates and walking areas for visitors.

Chinatowns around the world are not only places where Chinese people live and work. They are also places

where visitors can learn more about Chinese culture and traditions.

1. In the 1840s, a large number of Chinese people went to America to _____.

A. look for jobs

B. look for gold

C. build Chinatowns

D. build the railway

2. According to the passage, Chinatown in Oregon was set up about _____ years ago.

A. 100

B. 160

C. 200

D. 300

3. According to the passage, Chinatown can also be found in _____ outside the United States.

A. London

B. Oregon

C. Washington

D. San Francisco

4. Visitors come to Chinatowns because they want to _____.

A. taste the food there

B. do shopping there

C. make some Chinese friends

D. learn more about Chinese culture

5. What's the best title of the passage?

A. The History of Chinatowns

B. The Visitors to Chinatowns

C. The Culture about Chinatowns

D. The Immigrants in Chinatowns

单项选择题