Mr Li: Hello, Children. Let's go to Century Park and have a picnic.
Children: Hurray!
Mr Li: Danny, do you have a camera?
Danny: Yes, my camera is new.
Mr Li: What do you have?
Danny: Alice has a cap. It's brown. Peter has a packet of sweets. He likes eating them. Jack has a sketchbook. He wants to draw some pictures. Jill has some water. She doesn't have juice. Eddie has a packet of biscuits, and Rose has a loaf bread.
Mr Li: Let's go to buy some food first.
Children: OK.
Things | ||||||
Whose | Danny's |
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