填入适当的单词或词组，补全对话。

D: What's the   1   ?

W: I feel very weak. I can't do any work, Doctor.

D: Do you   2  ?

W: No, I don't have a headache.

D:   3   at night?

W: Yes, I sleep very well.

D:Do you   4   every morning?

W: No, I don't have breakfast. And I have only a little food for lunch and supper   5   I want to

      keep   6   .

D: Oh, I see. There's nothing   7  . You need to eat    8   food and have   9   meals a day. And

    do some   10   every day. Then you'll get better soon.

某国有粮食收购站，与农民签订的农副产品收购合同( )。

A．免纳印花税
B．按购销合同由收购站贴花，农民免予贴花
C．按购销合同贴花双方各自贴花
D．按购销合同农民贴花，收购站免予贴花