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This is Hope School in a village in China. You can see twenty small trees around the school. The playground is big and clean. There are twenty-five classrooms and a computer room. There are many desks and chairs in my classroom. And there are forty pupils in each class. Many young teachers from cities work here. Lihua teaches PE. He often plays basketball with children after class.
1．Hope School is in the city.2．There are twenty classrooms.
3．There aren’t many desks and chairs in my classroom.
4．There are 40 pupils in each class.
5．Lihua often plays basketball with children after class.
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
