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Su Yu has a happy family. Her father is a driver and her mother is a doctor. Su Yu and her brother are students. They live in a tall building. There is a park in front of the building. It’s Saturday afternoon now. Su Yu and her family are in the park. Her father is playing football with her brother. Her mother is looking at the flowers. What about Su Yu? She’s listening to music under a tree.
1．Su Yu’s father is a doctor.2．The park is in front of Su Yu’s building.
3．Su Yu’s brother is playing football now.
4．Su Yu’s mother is listening to music now.
5．Su Yu is looking at the flowers now.
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
