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B: I’m writing an email to my pen pal in Ameria.
A: Does he live in New York?
B:
A: Does he like doing word puzzles and watching TV?
B:
A: Really?
B: Every weekend.
A: Amazing! I like it, too. Can I also be his pen pal?
B:
A: Cool!
| A．Yes, he does. |
| B．What are you doing now? |
| C．Sure. |
| D．No, he doesn’t. |
| E．When does he usually go hiking? |
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
