认真阅读短文，判断句子的正误，正确的打“√”，错误的打“×”。

　　　　　　　　　　　　　　　A Picture of Our School

      Look! This is a picture of our school. There is a tall building in the middle of the picture. There is a big

playground in front of the building. There are many trees and flowers near the playground. The trees are green.

The flowers are red and yellow. And there are many boys and girls on the playground. They're playing games.

There is a house near the building. It's our school library (图书馆). And our department (公寓) is next to it.

We all like our school very much.

( ) 1. There is a big playground in the middle of the picture.

( ) 2. This is a picture of their school.

( ) 3. There are many flowers and trees in our school.

( ) 4. Many students are playing games on the playground.

( ) 5. Our school library is near the tall building.

对于心肌负荷显像的描述

下列哪种药物与腺苷负荷作用类似（）

A.双嘧达莫

B.多巴酚丁胺

C.去甲乌药碱

D.去甲肾上腺素

E.肾上腺素