搜索
Amy: What are you doing, Lingling?
Lingling: I'm tidying my room.
Amy: Let me help you. Do you often tidy your room?
Lingling: Yes. I tidy my room every day. And I also help my brother clean his room.
Amy: Oh,you are so kind.
Lingling: But I don't often tidy my desk. It's very messy.
Amy: OK. I will help you clean your desk.
Linging: Thank you. Now my desk is tidy. Let's read.
Amy: Good idea.
1．Lingling is tidying her brother's room.（_____）
2．Lingling often tidies her room, but never helps her brother clean his room. （_____）
3．Lingling doesn't often tidy her desk. （_____）
4．Amy helps Lingling clean her brother's room. （_____）
5．They read books after tidying the desk. （_____）
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
