先阅读短文，然后根据短文内容在短文空白处填入一个适当的词，使短文完整、通顺，所填单词的首字母已给出。将填入空白处的单词写在答题卡上的相应题号后.

I was in a strange city and I didnt know the city at all.And what is more，I could not speak a word of the 小题1:l______.After having spent my first day in the town center，I decided to lose my way on my second day，since I was sure that this was the better way of 小题2:g____to know the strange city.I got on the first bus in the morning，rode on it for several stops，then got off it and walked on.The first two hours 小题3:p_____ happily enough.Then I decided to turn back to my 小题4:h______for lunch.After walking about for some time，I decided I had better ask the way.The小题5:t_______ was that the only word I knew of the language was the name of the hotel in which I 小题6:l________ and even that I pronounced badly.

I stopped to ask a friendly-looking小题7:n______ seller.He smiled and handed me a paper.I shook my head and repeated the name of the hotel and he put the paper into my hands，I had to give him some 小题8:m_______and went on my way.Then I met a policeman.I asked him at once.The policeman listened to me carefully.Smiled and took me 小题9:b_______the arm.There was a strange look in his eyes as he pointed left and right and left小题10:a_____.I thanked him politely and began walking on.

About an hour passed and I found that the houses were getting fewer and fewer and green fields could be 小题11:s_____ on either side of me.I had come all the way into the country.The thing left for me to do was to find the nearest bus station.

在DTH中不仅引起Ag活化的T细胞增殖，而且能使"旁观者"T细胞增殖的细胞因子是（）。

A.IL-2

B.IL-5

C.TNF-a

D.IFN-7

E.GM-CSF