油菜种子萌发后期,若呼吸过程中CO2释放量小于O2吸收量,其原因可能是 A.分解了脂肪 B.酶的活性增强 C.只进行有氧呼吸 D.无氧呼吸的强度大于有氧呼吸 答案:A根据上下文补全对话内容。A: Hi, John. You didn't come to school yesterday afternoon. What was wrong with you? B:1.______. A: I'm sorry to hear that. 2.______? B: Much better. But I still cough and I feel weak. A: 3.______? B: Yes, I have. I went to the doctor's last night. The doctor gave me some medicine and asked me to stay in bed for three days. A: 4. ______? B: Because I'm afraid I'll miss more lessons and fall behind. A: Don't worry about that. 5.______. B: It's very kind of you to say so. Thanks a lot. A: You're welcome.