题目

---I’ll go to Peking for a holiday soon . --- ____________. I will miss very much. Twenty days __________ long. A. Ok, you can go ;  is               B. Have a good time; are C. Have a good time; is               D. You are lucky; are 答案：C下列有关人体调节的叙述，正确的是A.促甲状腺激索只作用于甲状腺，甲状腺激素只作用于垂体和下丘脑B.体液免疫过程中，少数抗原直接刺激B细胞就可使其增殖分化形成浆细胞C.下丘脑产生的抗利尿激素，会导致血浆渗透压升高D.垂体产生促性腺激素，其靶器官是性腺