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A: Good morning, Lily!
B: Good morning, Mike!
A: What are you doing now?
B: I am doing my homework. What about you, Mike?
A: I am reading a book. But my brother is watching TV.
B: What is your mother doing?
A: She is listening to music. And my father is taking pictures.
B: Oh ! I know!
1．Lily is doing her homework. （
2．Mike is reading a book. （
3．Lily's brother is watching TV. （
4．Mike's mother is taking pictures. （
5．Mike's father is listening to music. （
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
