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( )（1） A. I was at home. B. I cooked food. C. I am on the farm.
( ) （2） A. Yes, it’s yours. B. Yes, it’s hers. C. Yes, it’s mine.
( ) （3） A. On the 25th of April. B.On the 26th of April. C. On the 27th of April.
( ) （4） A. Keep off the grass. B. Be quiet. C. Danger!
( ) （5） A. Christmas. B. New Year’s Day. C. Spring Festival.
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
