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Hello, my name is Peter. I’m a new student. I am a cool boy. I’m tall. I have a black cap. I have three new friends.
Meet my friends
Fred is from the USA. He is ten years old. He is very strong. He has big eyes. He likes sports. Ken is from China. He is ten years old. He is friendly. He has black glasses. He likes maths very much.
Anna is from the UK. She is eleven years old. She’s short and thin. She has long hair. She’s quiet. She likes English. She is a new student, too. And her mother is a new teacher here.
1．Peter has a white cap.2．Fred is 11 years old.
3．Ken likes maths very much.
4．Anna’s mother is a doctor.
5．Ken, Anna and Fred are Peter’s new friends.
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
