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Look at this bear. What is it doing? It's picking up apples. It puts five apples in its pockets. The pockets are full. But it wants to pick up more apples. So it walks under the tree. Look! What is it doing now? He is throwing the apples in the pockets. Then it begins to pick up another five apples. It puts the new five apples in its pockets again.
1．The bear is picking up bananas. （2．Its pockets are not full. （
3．There are five apples in its pockets at last. （
4．The bear picks up the apples and put them in its bag. （
5．The bear is very clever. （
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
