B. No, I don’t have a headache.
C. Thank you very much, doctor.
D. Yes. I sleep very well.
E. Oh, I see. There’s nothing serious. You need to eat more food and have three meals a day. Then you’ll feel much better.
F. I feel very weak. I can not do any work, doctor.
G. No, I don’t have breakfast, and I have only a little food for lunch and supper because I want to keep thin.
H. What’s your trouble, young man?
I. Last question, do you have breakfast every morning?
J. Do you have a headache?
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2