搜索
Yesterday, Wang Fei went to the supermarket with her mother. She wanted to buy a bag. First, she looked at the blue one. But it was very small and heavy. Then, she found a yellow one. It was very beautiful and big. But it was heavy, too. At last, she bought a green and light one.
1．Today, Wang Fei goes to the supermarket. （_____）2．Wang Fei went to the supermarket with her father. （_____）
3．Wang Fei wanted to buy a bag. （_____）
4．The yellow bag was very beautiful and big. （_____）
5．At last, Wang Fei bought a blue bag. （_____）
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
