缺铁性贫血采用铁剂治疗，观察疗效最早的指标是

A．血红蛋白上升

B．血清铁恢复正常

C．面色红润

D．网织红细胞增

E．MCV恢复正常

翻译下列短语

1. lead to ____  

2. object to ____

3. refer to ____    

4. stick to ____

5. add to _____  

6. add up to____

7. compare... to ____                    

8. see to ____

9. get close to____

10. get down to ____

11. get/be used to____

12.  pay attention to____

13. put an end to ____

14. admit to___

15. devote ... to ____