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The Fox and the Grapes
A fox is looking for food. He is very hungry. Now he is stopping and looking up. He sees a lot of fine grapes at the top of the wall. “How nice they are! I want to eat them.” The fox jumps and jumps, but the wall is too high. He can’t get the grapes. The fox goes away and says, “I don’t like those grapes. They are not good to eat.”
1．The fox is playing near the wall.2．There are many nice grapes at the top of the wall.
3．The fox doesn’t like those grapes.
4．The fox goes away because the grapes are not good to eat.
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
