如图甲所示的实验装置进行实验，并将实验数据描绘成如图乙所示的图象．
— __________
补全对话。
A: Hi, Chen Jie. ____
B: I'm fine, thank you.____
A: I'm not feeling well today.
B: ____
A: I have a headache.
B: I see. ____
A: Yes, I feel very tired.
B: You must go home and have a rest.
A: ____
