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Kitty and Ben have twelve yuan. Now they are in the supermarket. The supermarket is very big. They can see food , fruit, flowers and clothes in it. Kitty and Ben are very hungry. They buy two packets of biscuits. They’re eight yuan. Kitty is thirsty too. A big bottle of water is six yuan. A small bottle of water is three yuan. Which one can she buy?
1. Where are Kitty and Ben?_______________________________________
2. Are there any fruit and food there?
_______________________________________
3. How does Ben feel?
_______________________________________
4. How much is one packet of biscuits?
_______________________________________
5. What does Kitty buy?
_______________________________________
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
