题目

 —I’m thinking of the test tomorrow. I am afraid I can’t pass it.     —______! I’m sure you will make it.     A. Good luck             B. No problem                  C. Cheer up               D. Go ahead 答案：  C 当内环境稳态遭到破坏时，必将引起 [　　] A． 糖尿病 B． 酶促反应速率加快 C． 细胞代谢紊乱 D． 渗透压下降