搜索
I am Lucy. I like bags very much. I have two bags now. One is big and heavy. The bag is black. My father bought it ten years ago. And it has got no wheels and no pockets. And the other bag is yellow. It’s big but light. I bought it last year when I went to Beijing. It has got two wheels and three pockets. And it also has got a cute bear on it.
1．Lucy has two bags.2．Her father bought a yellow bag for her.
3．The black bag is big and heavy.
4．The yellow bag has got no wheels.
5．Lucy bought the yellow bag last year.
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
