Jim: Thank you! Wow, this farm is so big!
Mr White: They are horses.
Jim:
Mr White: We have nineteen.
Jim: Are these tomatoes?
Mr White:
Jim: Thanks.
Kate: Look! So many eggs!
Mr White: They are under the apple tree. Let's go to feed (喂) them, OK?
Jim and Kate:
A.Where are the hens? |
B.Great! Let's go! |
C.What are those? |
D.How many horses do you have? |
E.Yes, they are. |
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