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My name is Wang Hai. I am a student. I study in Hongxing Primary School. I am in Class 3, Grade 6. I often go to school by bus. I never walk to school. I live far from the school. Sometimes I read books in the library. I always help my mother on Saturdays. My teachers, my friends and my parents all like me very much.
1．Wang Hai is a student in Class 3, Gfade 5. （2．Wang Hai often walks to school.（
3．Wang Hai lives far from the school. （
4．Wang Hal never reads books in the library. （
5．Wang Hai's parents like him very much. （
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
