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Hello, I'm John. I'm from Australia. I'm a student. I always go to school from Monday to Friday. I live near school. I often walk to school. Sometimes, I ride a bike. My father is a policeman. He often goes to work by car. My mother is a doctor. She works in a big hospital. She often goes to work by bus. Sometimes she cooks good food for us. My sister is four years old. She is young. She is often at home. Sometimes she goes to the zoo with my parents.
often | sometimes | |
John | walk to school | |
John's father | —— | |
John's mother | ||
John's sister | be at home |
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
