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( ) 1. Is it on the chair?
A. Yes, it is. B. No, it isn't.
( ) 2. Is it in the hat(帽子)?
A. Yes, it is. B. No, it isn't.
( ) 3. Is it under the bag?
A. Yes, it is. B. No, it isn't.
( ) 4. Is it on the ball?
A. Yes, it is. B. No, it isn't.
( ) 5. Is it in the desk?
A. Yes, it is. B. No, it isn't.
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
