问题
单项选择题 A1/A2型题
本-周蛋白是指免疫球蛋白的()
A.Fc片段
B.Fab片段
C.L链
D.H链
E.可变区
答案
参考答案:C
解析:若免疫球蛋白的轻链合成超过重链时,则轻链游离于血清中,容易从尿中排出,命名为本-周蛋白。
本-周蛋白是指免疫球蛋白的()
A.Fc片段
B.Fab片段
C.L链
D.H链
E.可变区
参考答案:C
解析:若免疫球蛋白的轻链合成超过重链时,则轻链游离于血清中,容易从尿中排出,命名为本-周蛋白。
阅读理解。 | ||||||||||||||||||||||||||||||||||||||||||||
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1. According to the comments of the Physical Education teacher, Simon _____. | ||||||||||||||||||||||||||||||||||||||||||||
A. is too talkative in the class B. likes to work with his classmates C. doesn't exercise his body at the right time D. becomes weak because he doesn't exercise at all | ||||||||||||||||||||||||||||||||||||||||||||
2. Which of Simon's subjects will attract the headmaster's attention in future? | ||||||||||||||||||||||||||||||||||||||||||||
A. Biology and Maths. B. History and French C. English and Chemistry. D. Physics and Physical Education. | ||||||||||||||||||||||||||||||||||||||||||||
3. Which of the following statements best describes Simon? | ||||||||||||||||||||||||||||||||||||||||||||
A. He has made great progress in language classes. B. His potential has been fully reflected in science classes. C. His grade in maths makes him a born scientist. D. He needs to improve his attitude on certain subjects. | ||||||||||||||||||||||||||||||||||||||||||||
4. Based on the school report, which of the following statements is true? | ||||||||||||||||||||||||||||||||||||||||||||
A. Simon didn't bother his teacher to revise French. B. Basically, Simon did a good job in science. C. Simon is a determined learner in English. D. Simon is able to pay attention to history for long. |