问题 单项选择题

蛋白质-能量营养不良最常见的维生素缺乏是

A.维生素B缺乏

B.维生素B2缺乏

C.维生素C缺乏

D.维生素A缺乏

E.维生素D缺乏

答案

参考答案:D

解析:蛋白质-能量营养不良因缺乏能量和(或)蛋白质所致的一种营养缺乏症,出现血清运转蛋白包括前白蛋白、维生素 A结合蛋白降低。 [考点] 蛋白质-能量营养不良的并发症。

阅读理解

阅读理解。

     Long, long ago, seven colors were arguing about who was the most important color.

     Red said, "I am the ruler of all of you. I represent blood-life's blood! Without me, the world would be

empty." Orange said,"I am the color of health and strength. I am so beautiful that no one can think of any

of you." Yellow said, "I bring laughter and warmth into the world. Without me, there would be no fun."

     Green said, "I am the most important. I am the sign of life and hope. Without me, all animals would die."

Blue said,"You only think about the earth, but forget the sky and the sea. Water is the basis of life. Without

me, you all would be nothing." Purple said,"I am the color of royalty, power and wisdom. People usually

listen to me." Indigo (靛蓝) finally said, "Don't forget me! I am the color of silence. You need me for balance."

     Suddenly, it started to rain. The colors were afraid and came close to one another. The rain saw this and

said,"You foolish colors, don't quarrel (争吵) any more. Join hands with one another and come to me."Doing

as they were told, the colors united and joined hands. A beautiful rainbow appeared in the sky. The rain said,

"The rainbow is a sign of hope for tomorrow. Let us remember today and appreciate (欣赏) one another."

1. Of all the ___________ colors, everyone wanted to be the most __________ one.

2. Red thought there would be ___________ in the world ___________ him.

3. ___________ thought he himself was the color of ___________ and happiness.

4. In the end the rain ___________ the colors ___________ quarrelling.

5. From the story, we can learn that we should ___________ together and ___________ and enjoy the

   good qualities of each other.

单项选择题