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Mrs Liu： What is the time?
Liu Tao： It's eleven thirty.
Mrs Liu： It's time to have lunch.
Liu Tao： OK. But may I have an ice-cream?
Mrs Liu： Why? What's the matter?
Liu Tao： I'm so hot.
Mrs Liu： Let me see. Oh, no. There's no ice-cream in the fridge. Here's some cold water for you.
Liu Tao： Thank you, Mum.
( ) 1. It's eleven thirty now.
( ) 2. It's time to have ice-cream.
( ) 3. Liu Tao is hot.
( ) 4. The ice-cream is in the fridge.
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
