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I’m Sam. I’m a thirteen-year-old boy. I like swimming and running. They make me healthy. My best friend is Peter. He is a bookworm. He reads a lot. He likes reading comics and detective stories. He usually reads books at school or in the library. His favourite book is Detective Conan. Conan is a boy. He is thin and short, but he’s very clever. He wants to be Conan one day.
1．I love reading.2．Peter is a bookworm.
3．Peter’s favourite book is about detective stories.
4．Peter is thin and short.
5．Conan is a clever boy.
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
