问题
单项选择题 A1/A2型题
由活化的T细胞产生的是（）.
A.multi-CSF
B.C-CSF
C.M-CSF
D.Epo
E.SCP
答案
参考答案：A
解析：活化的T细胞能产生多种colony-stimula-tingfactor（CSF），即multi-CSF。
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由活化的T细胞产生的是（）.
A.multi-CSF
B.C-CSF
C.M-CSF
D.Epo
E.SCP
参考答案：A
解析：活化的T细胞能产生多种colony-stimula-tingfactor（CSF），即multi-CSF。
| 用方框中所给单词的适当形式填空，每个单词限用一次，使短文通顺正确连贯。(其中有两个单词多余) | |
3______ very much. And he plays soccer very well. At school he is the 4______ of the soccer team. Paul is always 5______ that he wants to be a soccer player like David Beckham. Paul is a funny boy, too. He often tells 6______. His friends all like him. Oh, Paul 7______ a pen pal from the United States. His name is Jake. Jake is of medium 8______. And this boy wears 9______. Jake likes music. His dream is to be a pop 10______. Every winter he comes to Canada to see us. I like Jake. I also want to have a friend like him. |
