问题 单项选择题

上述哪种疾病超声检查可见强回声位于肾锥体的 * * 部,呈放射状排列()。

A.肾结石 

B.肾窦内灶性纤维化 

C.肾内钙化灶 

D.海绵肾 

E.肾钙质沉积症

答案

参考答案:D

解析:

海绵肾为先天性髓质囊性病变的一个类型,此病较为少见,其特点是髓质集合管呈囊性扩张。超声检查可见肾锥体内呈分布一致的高回声区,呈放射状排列,这是集合管囊腔较小,形成大量的反射界面,内部可有成簇的小结石形成(在 * * 区呈放射状排列),所以呈高回声,而没有无回声区的囊腔显示。肾皮质回声均匀,肾脏大小接近正常。

单项选择题
阅读理解

阅读理解。

     EDGEWOOD-Every morning at Dixie Heights High School, customers pour into a special experiment:

the district's first coffee shop run mostly by students with special learning needs.

     Well before classes start, students and teachers order Lattes, Cappuccinos and Hot Chocolates. Then,

during the first period, teachers call in orders on their room phones, and students make deliveries.

     By closing time at 9.20 a.m., the shop usually sells 90 drinks.

     "Whoever made the chi tea, Ms. Schatzman says it was good," Christy McKinley, a second year student,

announced recently, after hanging up with the teacher.

     The shop is called the Dixie PIT, which stands for Power in Transition. Although some of the students

are not disabled, many are, and the PIT helps them prepare for life after high school.

     They learn not only how to run a coffee shop but also how to deal with their affairs. They keep a timecard

and receive paychecks, which they keep in check registers.

     Special-education teachers Kim Chevalier and Sue Casey introduced the Dixie PIT from a similar program

at Kennesaw Mountain High School in Georgia. 

     Not that it was easy. Chevalier's first problem to overcome was product-related. Should schools be selling

coffee? What about sugar content?

     Kenton County Food Service Director Ginger Gray helped. She made sure all the drinks, which use non-fat

milk, fell within nutrition (营养) guidelines.

     The whole school has joined in to help.

     Teachers agreed to give up their lounge (休息室) in the mornings. Art students painted the name of the shop

on the wall. Business students designed the paychecks. The basketball team helped pay for cups.

1. What is the text mainly about? [ ]

A. A best-selling coffee.

B. A special educational program.

C. Government support for schools.

D. A new type of teacher-student relationship.

2. The Dixie PIT program was introduced in order to _____. [ ]

A. raise money for school affairs

B. do some research on nutrition

C. develop students' practical skills

D. supply teachers with drinks

3. How did Christy McKinley know Ms. Schatzman's opinion of the chi tea? [ ]

A. She met her in the shop.

B. She heard her telling others.

C. She talked to her on the phone.

D. She went to her office to deliver the tea.

4. We know from the text that Ginger Gray _____. [ ]

A. manages the Dixie P1T program in Kenton County

B. sees that the drinks meet health standards

C. teaches at Dixie Heights High School

D. owns the school's coffee shop