搜索
Hello! I’m Liu Qiang. I’m from Qingdao. I’m ten. I am a student in Grade Three. I have a happy family. There are（有）four people in my family. My father is a teacher. My mother is a teacher, too. She’s very nice. My brother is Liu Tao. They all（都）love me. I love them too!
1．Liu Qiang is from Qingdao.2．Liu Qiang is a student in Grade Three.
3．Liu Qiang’s mother is a teacher.
4．Liu Qiang's father is an actor（男演员）.
5．Liu Tao is Liu Qiang's brother.
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
