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Hi! I’m Tiantian. I like taking pictures and swimming. Look at these pictures. This is my mother. She’s reading a book. This is my father. He’s talking to his friend. This is my sister Maomao. She’s listening to music. This is my little brother Zhuangzhuang. He’s riding a bike.
1．Tiantian likes taking pictures and swimming. （2．Tiantian’s mother is talking to her friend. （
3．Tiantian’s father is flying a kite. （
4．Maomao is listening to music. （
5．Zhuangzhuang is riding a bike. （
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
