问题
单项选择题 A1型题
CD4+Th细胞活化的第一信号是（）
A.表达IL-12，IL-2，IL-4的受体
B.TCR识别肽AgMHCⅡ类分子复合物
C.CD4+Th与APC间黏附分子的作用
D.IL-12作用
E.IL-1的作用
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
CD4+Th细胞活化的第一信号是（）
A.表达IL-12，IL-2，IL-4的受体
B.TCR识别肽AgMHCⅡ类分子复合物
C.CD4+Th与APC间黏附分子的作用
D.IL-12作用
E.IL-1的作用
参考答案：B
| 句型转换,把画线部分转换成同义或近义的词组。 |
| 1. The baskets were full of apples. The baskets______ ______ ______apples. 2. Because it rained, some students were late this morning. Some students were late this morning________ ________the rain. 3. Their parents went to New York by air. Their parents________ ________New York. 4. Don't talk about anything else. Let's get back to the main problem. Don't talk about anything else. Let's_________ ________ the main problem. 5. There are plenty of fun things to do. There are________ ________fun things to do |