问题 单项选择题 B1型题

急性大出血时明显增多的是 ()

A.中性粒细胞

B.嗜酸性粒细胞

C.嗜碱性粒细胞

D.淋巴细胞

E.单核细胞

答案

参考答案:A

解析:

中性粒细胞是机体重要的应激反应性细胞,在急性感染或炎症、广泛组织损伤或坏死、急性溶血、急性失血、急性中毒等情况下,骨髓贮备池中的粒细胞会释放或边缘池粒细胞会进入血液循环,导致外周血白细胞明显增多,以中性分叶核粒细胞或杆状核粒细胞为主,因此最佳答案是A。

阅读理解

阅读理解。

       A young woman was driving through the lonely countryside. It was dark and rainy. Suddenly she saw an old woman by the side of the road, holding up her hand as if she wanted a lift(搭便车)."I can't leave her out in this weather," the young woman said to herself. She stopped the car and opened the door.

     "Do you want a lift?" she asked. The old woman nodded(点头) and climbed into the car. After a while, she said to the old woman, “Have you been waiting a long time?" The old woman shook (摇晃) her head. "Strange," thought the woman. She tried again. "Bad weather for the time of year," she said. The old

woman nodded.

      Then the young woman noticed the old woman's hands, which were large and hairy(多毛的).

Suddenly she realized that "she" was a man! She stopped the car. "I can't see out of the rear screen

(挡风玻璃) ,"she said. "Would you mind cleaning it for me?"

       "The old woman" nodded and opened the door. As soon as "she" was out of the car, the frightened

young woman drove off as fast as she could.

        When she got to the next village, she stopped. She noticed "the old woman" had left "her" handbag

behind. She picked it up and opened it. Inside was a gun(枪).

1. When the young woman talked with "her", "the old woman" only nodded or shook "her" head because "she"_______.

A. didn't want the young woman to hear "her" voice

B. didn't want to trouble the young woman any more

C. was so tired that "she" didn't want to talk with her

D. was worded that the young woman had seen "her" hands

2. How did the young woman find “she” was a man?

A. The young woman hared her "voice"

B. The young woman saw a gun in the handbag

C. The young woman noticed the old woman’s hands were big and fairy    

D. The young woman had never seen "the old woman"

3. The young woman asked "the old woman" to clean the rear screen in order to________.

A. see more clearly              

B. drive fast and well  

C. make "her" speak              

D. throw "her" out

4. From the story we can see that the young woman was______.

A. kind and clever                  

B. beautiful and bright  

C. foolish and shy                  

D. strong and helpful

5. What do you think "the old woman" was?

________.

A. A policeman.                      

B. A basketball player.  

C. A robber,                        

D. A poor villager.

单项选择题