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Mike: No, it isn't.
Nancy: I'm sorry, but where's my pencil case?
Mike: Look, it's on the desk.
Nancy: Thank you.
Mike: What's this in your pencil case?
Nancy: It's a bookmark. Do you like this red bookmark?
Mike: Yes, I do.
Nancy: Me, too.
1．Nancy can't find her pencil case.
2．Mike's pencil case is on the desk.
3．There's a bookmark in the pencil case.
4．They don't like the bookmark.
5．The bookmark is yellow.
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
