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Hello, I’m Lily. I’m tall and thin. I’m very friendly. I have a new classroom. It’s very big. You can see many desks and chairs. My picture is on the wall. My new schoolbag is in the desk. It’s black and white. I have an English book, a Chinese book, a maths book, three notebooks and a pencil-box in it. In my pencil-box, you can see a ruler, two pens, seven pencils and an eraser.
1．Lily is tall and friendly.2．Lily has a big classroom.
3．The new schoolbag is blue and white.
4．The pencil-box is in the schoolbag.
5．There are 6 pencils in the pencil-box.
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
