病原体的变异有下列哪些情况（）。 A.病原体抗原的变异 B.病原体毒力的变异 C.对

根据答句或结合提示写问句。

1. A: _______________________________________________? (ABC) 

    B: Mr. Lynn.

2. A: _______________________________________________? 

    B: Mike is young and strong.

3. A: _______________________________________________? 

    B: She is very kind. We all like her.

4. A: _______________________________________________? 

    B: She is our Chinese teacher.

5. A: _______________________________________________? (严格的)

    B: Yes, he is.

6. A: _______________________________________________?  

    B: No, she is old.

7. A: _______________________________________________? (和蔼的)

    B: No, he is active.

8. A: _______________________________________________? 

    B: It's Thursday.

9. A: _______________________________________________?

    B: No, today is Monday.

10. A: _______________________________________________?

      B: I have math, science and P. E.

11. A: _______________________________________________?

      B: I often read books on Saturday.

12. A: _______________________________________________?

      B: I often play ping-pong on Tuesday afternoon.

13. A: _______________________________________________?

      B: I have tofu and potatoes for lunch.

14. A: _______________________________________________?

      B: I'd like mutton and cabbage for dinner.

15. A: _______________________________________________?

      B: I like fish. It's tasty.

患者男性，58岁，农民，因“声嘶18个月，加重伴气促2个月”来诊。患者近18个月声嘶，咽喉干燥，微痛。近2个月上述症状渐加重，自服中药治疗，无效。查体：喉黏膜稍红肿，会厌活动良好，左声带、室带可见菜花样新生物，左声带固定不动，右声带未见异常。

要明确本病例的诊断和确定治疗方案，需要进行的检查有（）

A.间接喉镜

B.纤维电子喉镜

C.食管镜

D.肿物病理活检

E.纤维支气管镜

F.喉CT

G.喉超声

H.喉穿刺

公务人员办公室环境的礼仪要求是什么？

The following clients have approached you for advice regarding corporate income tax (CIT) in 2010:

原地基为耕地或松土时，应先清除有机土、种植土、草皮等，清除深度一般不小于( )。

A．5cm

B．10cm

C．15cm

D．20cm