根据对话内容,写出句中所缺单词

小题1:-Why did you go to Beijing last week?

-Oh, I went there on _______. I talked about a project with other companies.

小题2:-Come on. We only have 5 miles left.

-I'm _______ out and I can't go any further.

小题3:-It's dangerous. You should tell your brother not to go sailing alone.

-But he has already made up his _______ to do so.

治疗囊尾蚴病的首选药物是（）

A.呋喃唑酮

B.吡喹酮

C.阿苯达唑

D.甲硝唑

E.葡萄糖酸锑钠