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I am Tom. Everyone in my family has a hobby. My father’s hobby is collecting stamps. He has a lot of stamps from other countries. My mother likes reading and collecting books. My grandpa has many old clocks and watches. His hobby is collecting toy cars. So you can see books, stamps, clocks, watches, maps and toys cars in our house.
1．Tom’s mum likes collecting stamps.2．Tom’s father likes collecting books.
3．Tom’s grandpa’s hobby is collecting toy cars.
4．Tom’s grandma likes collecting books.
5．There are many stamps from other countries in Tom’s house.
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
