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Today is Saturday. It’s Sam’s eighth birthday. He is so happy. Some friends come to his house, and they are having a big birthday party now. Look! Sam is wearing a birthday hat and cutting a big birthday cake. Mike is playing the guitar. Oliver is singing an English song. Sarah and Amy are reading riddles. Wu Binbin and Zhang Peng are playing games. Robin is doing kungfu. Dad and mum are cooking noodles for them. |
1．Tomorrow is Sunday.
2．Sam is eighteen years old.
3．Sam’s parents can cook noodles.
4．Sam and his friends are having a party.
5．Wu Binbin and Zhang Peng are playing the guitar.
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
