搜索
I'm Susan. I arrive at the village at nine o'clock in the morning. There are many trees in the village. I see some old people sitting under a big tree. They are talking. They are happy. I see some children flying kites. They are happy. One little girl is crying. She is sad. Because she can't fly the kite. It's difficult for her.
1．Susan arrives at the village at eight o'clock in the morning.2．There are no trees in the village.
3．Susan sees some old people sitting under a big tree.
4．The old people are happy.
5．Everyone is happy.
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
