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1. It is a big animal. It is black and white. It has got a big nose, two big ears and four legs. It lives on a farm. It eats grass. We drink its milk. The milk is good for us. What is it?
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2. It has got a big nose, big mouth, two big ears and four legs. It lives on a farm. It eats a lot every day. It sleeps a lot, too.
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3. It has got no hands and no legs. It has got a mouth and two eyes. It can’t walk, but it swims fast.
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4. It isn’t big. It has got two legs. It likes water. It can swim. It can walk, too.
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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
