阅读下面的对话，根据上下文蒋空缺的内容补充完整，完成对话。每空不限填一个单词。

A :Hello,  Mrs White. Come in and sit down.

B :Hello,  doctor.

A : 小题1: 

B :I've got a headache.

A : 小题2:  you often have a headache ?

B :No,  never. I've never had a headache before.

A : 小题3:   have you been like this ?

B :About two or three hours ago.

A :Let me take your temperature. Oh, it's high fever. You must catch a bad cold.

B : 小题4:  give me some medicine ? It's very painful.

A : Yes. I'll give you some pills,  take one three times a day.  You will 小题5:  soon.

B :Thank you very much.

A :That's all right.

选用管井井点降水，土的渗透系数为（）m/d

A.A

B.B

C.C

D.D