Miss Li: Tomorrow is Children’s Day. We’ll have a party.
Lucy: We’re going to have fun together.
Miss Li: Yes. We need to buy many things. Can we go shopping?
Lucy: Sure.
Miss Li: Well, first we need to buy some snacks and drinks.
Lucy: We need to buy some gifts.
Miss Li: Oh, do not forget to buy some colorful balls and papers to decorate the classroom.
Shopping list (购物单)
(1)_____________
(2)_____________
(3)_____________
(4)_____________
(5)_____________
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