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Amy is twelve years old today. She is having a birthday party. There are many friends at the party. They all come with different gifts. Mary gives her a nice doll. Sam brings a good picture book. Joe buys her a CD of Jay Chou (周杰伦). Amy likes the CD best, because Jay Chou is her favourite pop star (流行歌手). They are singing and dancing at the party. They all have a good time.
1．Amy is 11 years old today.2．Amy gets a lot of gifts from her friends.
3．Sam gives her a CD.
4．Jay Chou is a pop star.
5．Everyone is happy at the party.
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
