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A: 1．
B: I don’t feel like eating these days. I’m afraid I’ve had the COVID-19.
A: 2．
B: Since last Friday, I think.
A: 3．
B: Yes, I got vaccinated last week.
A: 4．
B: No, my temperature is okay.
A: Don’t worry. There is nothing serious.
B: 5．
A: Have a good rest. You’ll get well soon.
| A．Do you have a fever? |
| B．What should I do then? |
| C．How long have you been like this? |
| D．Have you got vaccinated（疫苗）? |
| E．What’s the matter with you, young man? |
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
