Su Hai: I can’t find(找到) my crayon. Where’s it?
Liu Tao: Is this
Su Hai: No. This
Liu Tao:
Su Hai: Yes, it is. Thank you. What’s in the box, Liu Tao?
Liu Tao:It’s a pen. It’s my birthday present(礼物) from my mum.
Su Hai: How
Liu Tao: No, it isn’t my pencil case. It’s Su Yang’s.
A.your | B.What’s | C.nice | D.Where’s | E.crayon |
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