人体的内分人泌腺构成了内分泌系统，下列不属于内分泌腺的是（） A．肾上腺 B．唾

决定医疗需要量的基本因素是（）

A.社会经济

B.人口特征

C.患病率水平

D.文化

E.医疗保健

根据句意改写句子。

1. The old man is so old that he can't work.

    The old man is too old                         .

2. I don't know how I can get to the TV factory.

    I don't know                                         to the TV factory.

3. Mr. Green went back to England for a holiday.

    Mr. Green went back to England                           a holiday.

4. Mike hopes he can visit the Great Wall on day.

    Mike hopes                          the Great Wall one day.

5. Does he say anything for himself at the meeting?

    Does he have anything                          for himself at the meeting?

6. He is so strong that he can carry the heavy box.

    He is strong                                       the heavy box.

7. He spent two hours doing the work.

    It             him two hours                          the work.

8. It's time for school.

    It's time                                       school.

9. It seems that she is an English teacher.

    She                                       an English teacher.

10. His father said to him, "listen to the teacher carefully."

      His father told him                                       the teacher carefully.

根管口是指

A．髓室和根管交界处

B．髓腔的开口处

C．根管末端的开口处

D．髓腔中根分叉的位置

E．根管最细的地方

填洼

当降雨强度小于下渗能力时，下渗率等于下渗能力。（）