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A: Hi, Danny.
B: Hi, Jenny. I’m fine, thank you.
A:
B: I went to fly a kite.
B:
B: No, I hurt my arm.
A:
B: I wanted to fly a kite, but I fell down and broke my arm.
A: I am sorry to hear that.
B:
A: I’m reading the newspaper.
B: Let’s go to the park this afternoon, OK?
A: OK. See you.
| A．What are you doing? |
| B．What did you do yesterday? |
| C．How are you? |
| D．What happened? |
| E．Did you have fun? |
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
