搜索
Winter holiday is coming.We're happy to welcome the holiday.Usually，winter holiday is funny because the Spring Festival is in it.
The Spring Festival is a wonderful day for every person，especially for children.During the festival，people go to visit each other and give presents to each other.Then it's the happy moment for children，children are given some lucky money.
But Tom is not a child any longer.He wants to make the festival a little bit different.He is going to sell toys in the flower market.He will ask his friends to join him.If he earns money，he will buy some presents for his parents.
( )（1）Winter holiday isn't funny.
( )（2）The Spring Festival is a wonderful day for every person.
( )（3）Tom is a child.
( )（4）He wants to buy some presents for himself.
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
