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Linda: 1．
Cindy: It’s about animals.
Linda: Wow! 2．
Cindy: I think you are interested in it.
Linda: I really want to go with you. But I have a swimming class this evening.
Cindy: 3．
Linda: Not very often, but swimming is my hobby.
Cindy: 4．
Linda: Will you swim with me next weekend?
Cindy: OK! But I can’t swim well.
Linda: 5．
Cindy: Thank you! You are so nice.
| A．What is it about? |
| B．Do you often have a swimming class? |
| C．That sounds wonderful. |
| D．I can help you. |
| E．So you are healthy and tall. |
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
