题型：问答题 简答题 体液免疫应答过程中，ThO细胞活化的第一信号是A．MHC-Ⅰ类分子与CD8分子间相互作用B．IL-2与IL-2受体间相互作用C．MHC-Ⅱ类分子与CD8分子间相互作用D．MHC-Ⅱ类分子-抗原肽与TCR间相互作用E．协同刺激分子与相应受体的相互作用 查看答案
题型：问答题 简答题 用方框中所给句子完成对话。A. You will have a good time. B. And can you make some food for us?C. Will you help me organize it?D. There's a test tomorrow.E. I'm going to take a bus to the party.F. Let's have it today after class.G. I don't think we should watch a video.A:Hi! Mark.I want to have a class party. ____1____M:Sure,Andrea. I can help you. So when shall we have the pafly?A: ____2____M: No, today is too early. If we have it today, half the class won't come.A:Okay,let's have it tomorrow.M:Hmm... ____3___Students will leave early to study for the test.Let's have it on the weekend.A:Okay,let's have it on Saturday afternoon. We can all meet and watch a video.M:No, ____4____Some students will be bored. Let's play party games.A:Okay,good idea. Can you organize the party games?M:Sure,I can do that. ____5____A:Yes.that's no Droblem. 查看答案