Liu Yun is Alice’s new pen pal.Now they’re chatting(聊天) on QQ.
Liu Yun: Hello,this is Liu Yun.
Alice: Hello,this is Alice. Let’s be friends.
Liu Yun: Nice to meet you.
Alice: 1 .
Liu Yun: 2 .
Alice: I like writing stories. 3 .
Liu Yun: I like collecting stamps. And my father likes writing stories,too.
Alice: Oh,I see. Does your mom like writing stories,too?
Liu Yun: 4 . But she likes reading stories.
Alice: 5 .
Liu Yun: Yes,she does. She is a singer.She likes singing very much.
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