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Hi! My name is Wu Yifan. I’m from China. I’m 10 years old. I’m a student. I have a good friend. He’s a boy. His name is Mike. He is 11. He has short brown hair. He has two big blue eyes and a big nose. He’s very friendly. He is tall and strong. His father is my English teacher. He can speak Chinese very well. We all like him very much.
1．Wu Yifan is from Canada.2．Mike is eleven years old.
3．Mike has black eyes.
4．Mike is friendly, tall and strong.
5．Mike’s father is an English teacher.
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
