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A: Hi, Yu Yue. 1．
B: Hi, Qu Tao. I’m fine, thanks.
A: Yu Yue, I didn’t see you in the story telling club yesterday. 2．
B: My mother was ill. I had to look after her at home.
A: Sorry to hear that. But you really missed many good stories.
B: Really? What a pity! 3．
A: Wang Feng’s story is the best.
B: What’s its name?
A: Yu Gong Moves a Mountain. 4．
B: Yes, I do. I have read many Chinese traditional stories like this.
A: Quite good! Let’s tell a story in the club next time.
B: 5．
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
