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Hello, I’m Zhang Hua. I’m from Tianjin. I'm twelve. I study in a primary school. I’m in Class Two, Grade Five. There are four people in my family. They are my father, my mother, my sister and I. My father is a writer. My mother works in a school. She is a teacher. My sister is in Grade Three. She’s nine. We love our father and mother. And they love us. We have a happy family.
1．Zhang Hua is from China.2．Zhang Hua is in Class Two, Grade Six.
3．There are three people in Zhanghua’s family.
4．Zhang Hua’s sister is nine.
5．Zhang Hua’s mother is a writer.
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
