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| A. The next day, Andy is with his friends. He's got the box. What's Andy doing? He is telling his friends about the dark and the box. They're happy. They don't like the dark. B. That evening, Andy is very busy. Andy is writing a long list of things. Andy and his friends don't like lots of things. There are lots of things to put into the box. C. Tonight, Andy got a great idea. It's very dark in the bedroom. But Andy is not afraid. He has a torch and a little box. He is putting the dark into the box. All the dark is in the box. He goes to the garden and opens the box. Now all the dark is out of the box. It is in the night. D. Andy likes winter. During the day, he can play in the snow with his friends. But in winter the days are short and the nights are long, Andy doesn't like nights. He doesn't like the dark. |
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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
