贫血按病因和发病机制可分为A．红细胞生成减少；红细胞过度破坏

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问题单项选择题

贫血按病因和发病机制可分为

A．红细胞生成减少；红细胞过度破坏及失血 3类
B．红细胞生成减少，造血功能不良2类
C．红细胞生成减少，造血功能不良及红细胞过度破坏3类
D．红细胞生成减少，红细胞过度破坏,失血及造血功能不良4类
E．红细胞生成减少，溶血，失血，再生障碍及缺铁5类

答案

参考答案：A

填空题

根据所给词的适当形式填空。

1. How ________ (more) salt will you put in the dish? Only a little.

2. Tina__________(buy) some interesting souvenirs for kids on her trip to China.

3. I spent half an hour________ (make) a bottle of delicious apple smoothie. How happy I was.

4. Fifteen minutes is enough for you ________ (cut) up some tomatoes.

5. You need ________ (add) some red sugar to the soup. It's really strong!

6. Why not ________ (turn) off the TV? You have lots of homework to do.

7. Would you like some ________ (butter) on the bread?

8. He worries about ________ (get) there in time, because he doesn't have a bike.

9. It's easy for her ________ (work) out the math problems.

10. ________ (wait) for someone for a long time often makes me feel tired.

填空题

东风4D东风11型高速客运内燃机车轴箱组装后应检查轴箱相对构架横动量符合（）mm的要求。