问题
多项选择题
下列哪些条件下易形成中等大小的免疫复合物()
A.颗粒性抗原
B.可溶性抗原
C.IgG类抗体
D.抗原略多于抗体
E.中等亲和力的抗体
答案
参考答案:B, C, D, E
下列哪些条件下易形成中等大小的免疫复合物()
A.颗粒性抗原
B.可溶性抗原
C.IgG类抗体
D.抗原略多于抗体
E.中等亲和力的抗体
参考答案:B, C, D, E
根据短文完成表格。每空不超过3个单词。 | ||||||||
I am near-sighted, and my eyesight is getting worse, because I play too many computer games and watch too much TV. I really play computer games a lot. There are so many different games and I spend all my time in playing them. When I play computer games, I always forget about my other plans. I am a bit ashamed (害羞) of this habit (习惯). I also like watching television. Sometimes I turn on my TV even while I am doing my homework. I usually sit one metre away from my TV and watch it for hours if my parents do not ask me to do something else. I know how bad my eyesight is when I am in a car. I look out of the window and see shops, but I can't see the signs clearly. I have to guess the shop names from from curves (弯曲物) and lines. I try my best not to wear glasses, because they change my appearance and make me look like a hen. I hate my eyes for making me wear glasses during school hours. I love my eyes at the same time because they let me see the beautiful world. Love your eyes and don't play too many computer games or watch too much TV. The world will be dark after you become near-sighted.
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