搜索
Hello, everyone! Today it’s windy and cold. So we don’t go to the playground. This is our classroom. It’s on the first floor. There is a coat on the teacher’s desk. The coat is John’s. It’s warm. It’s 10 o’clock now. It’s time for music class. Our music room is on the second floor. It’s next to the teachers’ office. Must go now!
1．It’s windy and warm today.2．Our classroom is on the second floor.
3．The coat is John’s and it is warm.
4．It’s time for English class.
5．The music room is next to the teachers’ office.
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
