It was Amy’s eleventh birthday yesterday. There was a birthday party in the evening. Her mother cooked delicious food and made a big birthday cake. Her grandparents bought her a new bike. Her father gave her a football. Her friends came to her house for the party. They sang, danced and played many games. At 8:00, they cut and ate the birthday cake. How happy they were!
1.Amy had a birthday party yesterday evening.2.She is twelve now.
3.Amy’s mother bought her a big birthday cake.
4.Amy got a new bike and a football.
5.Amy’s family and her friends were all very happy.
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同类型试题
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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
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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
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