—It’s a ship.
A. Where is it? B. What is it?
—________
A. It means “clever”. B. It means “happy”.
—________
A. Very good. B. Not bad.
—________
A. Yes, I am. B. Yes, we are.
—________
A. I’m going to the supermarket. B. We are going to the supermarket.
—________
A. Her name is Rose. B. His name is Lele.
—________
A. They are in front of the bears. B. They are next to the bears.
—________
A. Yes, I do. B. Yes, we do.
—________
A. Good idea! B. Wonderful idea!
—________
A. What is it? B. What’s it?
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同类型试题
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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
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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
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