Loch Ness is a lake in Scotland. Some people say that a monster lives in Lock Ness.
One day, a man walked by the lake. Suddenly, he saw a monster. It was big and brown. It had large fins and a long neck. It swam very fast. Other people also saw the monster in Loch Ness. They say it looked like a whale and a snake. Actually, nobody really knows what is in the lake. So people call it the Loch Ness monster.
1 What did a man see when he walked by the lake?
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2 What did the monster look like?
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3 How did the monster swim?
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4 What colour was the monster?
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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