问题 多项选择题

患儿女,11岁。牙龈出血伴头晕乏力1个月,发热、咽痛2天入院。查体:T 38.9℃,颈部、腋窝及腹股沟淋巴结明显肿大,胸骨压痛,肝肋下2cm、脾肋下4cm。血常规检查:Hb 48g/L,WBC 29×109/L,PLT 76×109/L,外周血有无法分类的细胞。

急淋骨髓细胞化学染色,下列错误的是

A.POX染色阳性

B.SB染色阳性

C.α-NAE染色阴性

D.PAS染色阳性

E.NAP积分往往减低

F.ACP染色:T细胞阳性,B细胞阴性

答案

参考答案:A,B,E,F

解析: 过氧化物酶(POX)和苏丹黑(SB)染色主要用于鉴别髓系与淋巴白血病:急粒、急单是阳性,急淋为阴性;α-醋酸萘酚酯酶(α-NAE)染色主要用于急单的诊断,急淋为阴性;急淋NAP积分往往增高;糖原(PAS)染色阳性;酸性磷酸酶(ACP)染色:T细胞阳性,B细胞阴性。

单项选择题 A1/A2型题
阅读理解

Cyber Cafe computer centers are found in many cities around the world. Now, a few American high schools are opening these centers. For example, high school in the state of Maryland began operating a Cyber Cafe last March. All students at Bethesde-Chevy Chase High School in Bethesda can use the Cyber Cafe. But school officials say I especially helps students who have no computer or cannot use the Internet at home.  

The officials say thirteen percent of the students at the school are from poor families. Many student have arrived in the United States from poor families. Many students have arrived in the United States from other countries only recently. Students in the school’s program for learning English speak twenty-three other languages.

The idea for a Cyber Cafe at Bethesda-Chevy Chase High School began three years ago. A that time, officials were planning o restore the school building. Parents interested in technology proposed a Cyber Cafe.

They wanted this center even though schools in the area had suffered budget cuts. The community wanted to help. It wanted all students to have the best chances to learn.

Officials in the area supported the idea. So did an organization called the Bethesda-Chevy Chase High School Educational Foundation. The foundation includes parents, teachers, former students, and business, community and other leaders.

Over two years, the foundation collected money for a Cyber Cafe and other new computers. It received more than one hundred seventy thousand dollars. The Café now has sixteen computer, a printer and a device called a scanner . School official Ann Hengerer (HEN-grr-er) says students use the Internet to complete research. They also write homework and required papers on the computers. In addition, they can send and receive electronic mails. That is especially helpful for the many students who have family members in other nations.

The Cyber Cafe also serves a social purpose. Visitors can stop by for a drink of coffee, tee or hot chocolate. On Long Island, in School has six computers in is Cyber Cafe. One student at the school says students can start their homework even before they leave school.

小题1:What is mainly discussed in the passage?

Cyber Cafe computer centers in many cities around the world

High school Cyber Cafe

Cyber Cafe at Bethesda-Chevy Chase High School  

Cyber Cafe at Walter G. 0’Connell Copiague High School

小题2:Who can use the Cyber Cafe?

Only the students from poor families

All the students at Bethesda-Chevy Chase High school

Only the students from other countries

Only the students who have no computer or cannon use the Internet at home

小题3:Which of the following is NOT true according to the passage?

Parents interested in technology proposed a Cyber Cafe.

The community wanted all students to have the best chances to learn.

Officials in the area supported the idea.

The foundation didn’t support the idea until two years later.

小题4:This passage may be adapted from a column entitled _________.

A.Education Report

B.In the News

C.Development Report

D.Science Report