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Hello! I'm Jenny. I'm nine. Look! This is my new classroom. It's nice. I have a new desk. It's yellow. This is my new chair. It's blue. I have a big schoolbag. It's black and white. I have a black pen, a green eraser and three pencils in my pencil-case. My pencil-case is red and yellow. I like red, yellow and white.
1．Jenny's classroom is new and nice.2．Jenny's desk is blue.
3．Jenny's schoolbag is black and white.
4．Jenny has(有) one pencil, one eraser and three pens.
5．Jenny likes yellow, red and white.
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
