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David: Hey, Ben! Have you ever been to Sichuan?
Ben: Yes. I went to Jiuzhaigou Valley in 2022. It’s a really beautiful place.
David: Wow! I saw some pictures of Jiuzhaigou Valley on the Internet. There are some beautiful lakes.
Ben: Yeah.
David: Thanks for your suggestion.
Ben: What a surprise! How do you feel?
David:
Ben: Is it in Yunnan Province?
David:
Ben: Sounds great! What will you do at Lugu Lake?
David:
Ben: I think you will have a good time.
| A．Yes, it is. |
| B．I feel excited. |
| C．And the water is clear and looks colourful. |
| D．We will go boating and eat some delicious food there. |
| E．I am going to Lugu Lake with my family this vacation. |
| F．We went boating and ate some delicious food there. |
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
